Many biomed's become a Manager because they were a good and competent time served technician. The skill sets required are different, and it does not follow that a good biomedical technician, becomes a good Manager, (or leader).
Indeed. But to be fair (and to offer a bit of balance), I have also known (and also worked for) excellent managers who had previously been pretty lousy technicians!
One of the reasons they were good managers was that they were also good listeners (and sought opinions from, shall we say, the shop floor).