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Previous research has identified factors that enable lean change to be sustained. What remains unknown is how the interaction effects amongst these factors vary as lean change programmes mature. When are particular factors at their most influential?

Using a data and investigator triangulated qualitative research strategy, this paper tests an a priori model of change sustainability factors. In phase one, the research reveals the influence and significance of the model's change sustainability factors within 13 manufacturers. In phase two, four factors (Leadership, Political, Individual and Managerial) were selected for in-depth case study analyses in three manufacturers.

These point to when in the lean change, certain factors have the most influence on its sustainability. The Leadership factor and political factor are essential at the beginning and remain influential throughout. Employees' individual commitment (Individual factor) is significant in sustaining the change but it is at its most influential in the later stages. The Managerial factor (management approach) is influential in the mature stages of the programme.

Recognising where to put maximum focus during a lean change programme as it matures is crucial for management.

Sustaining lean change has not been studied from the perspective of what factors need to be emphasised at different stages in the programme for successful maturity to occur. Through empirical validation, this study helps address this knowledge gap.

Interesting because – Researchers have found that the majority of lean implementations fail – changes to structures and working practices are made only to see the gains dissipate. Previous research has suggested that multiple factors including leadership, culture and politics influence the change towards a lean organisation. While studies have shown that such factors play a role, what has not been studied is the time, that is, when the factors influence the change process. This study investigated when 11 factors have the most influence on lean implementation. Theoretical value – The study extends the state-of-the-art understanding of implementation of lean in organisations by adding a time element. It is found that in order to have a change that is sustainable, that is, lasting at least 18 months, factors that indicate the importance to the organisation are influential during the entire implementation process. This includes how central the change is to the organisation, the influence of leadership that sets vision and goals, and the implementation methods. Factors that can set things in motion such as the influence of important stakeholders are important at the beginning of the implementation process but then decline in influence over time. While factors that seem to have to do more with how companies operate have less influence at the start but become more influential over time. These include employees' commitment, the managerial style and approach, the organisational policies and structure, and the organisational culture. Practical value – Introducing lean into an organisation and gaining its sustained benefits is often not successful. While factors have previously been identified that influence the success of lean implementation, this study provides additional practical insight. It helps manufacturers be more effective by pinpointing which factors should be focused on during the various stages of the implementation process.

Reports on interviews held with management at six factories in the UK, which had received awards for their manufacturing excellence, which aimed to discuss the TQM initiatives and, in particular, to gauge the degree and nature of the management commitment required to make these successful. Uncovers, from the results, an indication of the emphasis that managers must place on becoming personally involved if TQM is to be successful. Identifies four common dimensions of management commitment in the approaches seen across the six factories: the time and effort invested, emphasis on clear goals and organizations, management’s manufacturing expertise, and a strong focus on employees (training and teamwork). Concludes that although the findings are based on only six cases, the topic of commitment is an important one, with significant implications for management and it is also an area which is ripe for further, detailed investigation.

Streamlining the supplier base is a common approach in many US and UK manufacturing companies. However, is this approach being adopted in Germany as fast as it has in the UK? This paper describes research that answers this question and investigates how German companies are managing contacts with their suppliers. The research was conducted in two stages. First, a postal survey of German and UK manufacturers identified the supplier base trends. Second, a follow‐up telephone survey of a random sample of German plants investigated supplier management processes. The findings show that German manufacturers have not reduced their supplier base by as much as their UK counterparts. However, German manufacturers that have reduced their supplier base perceive significant benefits. Currently, many companies appear to have failed to recognize the potential of working with a reduced supplier base.

A key issue for manufacturers is supplier management, i.e. organising the optimal flow of high quality, value‐for‐money materials or components from appropriate innovative suppliers. Many companies now recognise the central role that supplier management plays in achieving long‐term competitive advantage. This paper presents the results of a study of supplier management practices in Germany, contrasted against those in the UK. It identifies a key difference – German manufacturers have not reduced their supplier base as much as the companies in the UK. However, it appears that German manufacturers will be reducing their supplier base in the near future, although they are likely to follow a policy of multiple sourcing rather than single‐sourcing from suppliers. The results of the research have strong implications for German companies as they clearly indicate the potential for performance improvement through the adoption of best practices in the field of supplier management.

Supplier partnerships can be the key in enhancing the performance of manufacturing companies. Consequently, partnership has been strongly recommended by academics and practitioners alike. Surprisingly, the concept of partnership is only poorly understood. Many authors have identified the advantages that it can bring but far less has been published on the attributes of partnership itself. What is known is that partnerships are “close” relationships and thus, the level of relationship closeness is an appropriate angle for exploring supplier partnerships. Research was conducted using the repertory grid technique with an exploratory sample of ten managers from four German engineering companies. It revealed that supplier partnerships are very different from other forms of relationship and identified five distinct attributes of partnerships. These findings have a number of implications for both practitioners and researchers.

Effective management of suppliers is one of the ways manufacturing companies can improve their performance. Typically, it has been argued in the literature that close relationships with suppliers should be developed, in contrast to the traditional price‐driven transactional relationships. However, there has been relatively little empirical research on how supplier management is applied.

This paper presents research probing how manufacturers manage their suppliers and takes a sample from Germany – which has a large manufacturing sector. In‐depth interviews with purchasing managers were used to understand whether relationships with suppliers were being utilised.

The analysis of the data indicates that a significant portion of the companies surveyed had experienced a change in their relationship with suppliers in the last few years. In the main, relationships had become closer and the use of partnerships was in evidence.

The research results have implications for German manufacturing companies, as they indicate the potential for improving performance through the greater adoption of best practices in the area of supplier management. The research results indicate the need for German manufacturers to adopt leading‐edge practices in the area of supplier management.

Although exploratory in nature, the investigation demonstrated the need for researchers to better understand the range of relationships in a typical manufacturer's supplier base.

Details the findings of a search for manufacturing “strategic groups” in the engineering industry, that is a set of firms competing within an industry on the basis of similar combinations of business scope and resource commitments. The research methodology used was to adopt stockturns (excluding work in process), as a measure of manufacturing scope. Manufacturing throughput efficiency was selected as a measure of production engineering resource commitment. An initial grouping of companies was accomplished by using these two manufacturing performance variables. Comparisons were then made of the manufacturing practices and performances of the firms in the four strategic groups that were formed. The results show statistically significant differences in the performance of each of the strategic groups formed. They can also serve as benchmarks for the evaluation of manufacturing management performance. The proposed manufacturing strategy and performance matrix provides a practical framework for strategic planning.

The purpose of this paper is to share the authors' experiences of using the repertory grid technique in two supply chain management studies. The paper aims to demonstrate how the two studies provided insights into how qualitative techniques such as the repertory grid can be made more rigorous than in the past, and how results can be generated that are inaccessible using quantitative methods.

This paper presents two studies undertaken using the repertory grid technique to illustrate its application in supply chain management research.

The paper presents insights into supply chain research that otherwise would not have emerged using traditional methods. Both studies derive a comprehensive list of empirical categories of constructs, many of which have not been identified in the extant literature. Moreover, the technique demonstrates that frequently‐mentioned constructs are not necessarily the most important.

The paper demonstrates how quantitative calculations can strengthen qualitative research. Importantly, from the authors' experience of using the technique the paper details how to focus on demonstrating validity, reliability, and theoretical saturation.

It is the authors' contention that the addition of the repertory grid technique to the toolset of methods used by logistics and supply chain management researchers can only enhance insights and the building of robust theories. Qualitative studies that adopt the technique cannot only provide rich insights, but also counter the common criticism aimed at qualitative research – that of failing to provide clear and transparent accounts of the analysis process and how findings are generated from the data set.

Shows that manufacturing companies place a strong emphasis on the role of supply‐chain management ‐ the management of supplies, suppliers, inventory and distribution. Much of the literature talks about the trend to reduce supplier base. Database analysis gave empirical evidence of this trend in UK manufacturing companies ‐ 201 companies from different industrial sectors cut their supplier base over the last four years, by 9 per cent in the household products sector and approximately 35 per cent in the process, engineering and electronics sectors. Reports on further research at four companies, looking at their experiences with suppliers and establishes that a key reason for supplier base reduction is to free time to manage the remaining suppliers more effectively. Identifies the criteria used for supplier selection and reasons why single‐sourcing was avoided. Suggests that these findings on supplier management have implications for both researchers and managers in industry.

The purpose of this paper is twofold; first, to investigate whether the manufacturing specializations of network plants fulfilling similar strategic plant roles (Ferdows, 1997) are common in type. Second, to examine current strategic manufacturing network management practice and develop a map of this process.

Three multisite manufacturing businesses participated in this case research. The first phase of the study consisted of an initial visit made to the headquarters of each firm to be briefed on its manufacturing network strategy and to collect company manufacturing performance data. Visits were then made to 11 network plants to collect site manufacturing performance data and to research the manufacturing specialization of each site and the degree of autonomy of its management team. The second phase of the research comprised a number of additional visits to the headquarters of one of the three case study firms to investigate the process employed to downsize its existing manufacturing network capacity in response to a significant decline in customer demand.

Three common types of manufacturing specialization have been identified in the networks of plants studied and the case research findings have enabled the development of a process for manufacturing network strategy deployment.

The proposed process for the strategic management of a manufacturing network is based upon the findings of a single case study and thus the generalizability of the findings is limited.

Auditing the manufacturing specialization of network sites is an essential preparatory procedure for determining a manufacturing network strategy. How this information is used to facilitate the management of manufacturing network configuration and coordination and for manufacturing network strategy deployment is detailed in the paper.

A process map has been developed that includes a review of current network configuration and coordination policies, in combination, as these underpin manufacturing network strategy deployment. Such a process map has not been detailed previously in the literature.