Empirical works have analysed many different soft aspects of lean management. Recently
lean leadership has gained specific interest. Our empirical work studies how lean
production techniques mediates the relationship between leadership attributes and
performance measures. Statistical analyses of two different organisational roles (CEO
production manager) from two cross-sectional datasets revealed that bossy and
consultative leadership behaviours have impact in both years. Our findings clearly
underline that the relationships among behaviours, lean and performance are not stable
over the time.