It used to be fun being one of the boss men, but not if you work at Schwarz Group these days. Klaus Gehrig, the powerful figure running the German retail giant founded by secretive entrepreneur Dieter Schwarz, seems to revel in home-made creative disruption. In increasingly frequent purges the 70-year-old corporate veteran regularly gives his top brass the chop, regardless of their sales achievements. No one is sacrosanct and no one is spared, if they question the general partner's structural changes...