Recently Indian cricket team lost the series to England. Those who praised the first win were the same to blame the losses also. However, success or failure depends directly on the collective performance of the team. And, the responsibility also rests with the team selection committee.
If the team members are hand picked without choice or concurrence of the team leader (Captain), then the committee is responsible for the outcome. The role of the captain is limited to running the show, as he can. If the captain is not capable, then a good team also can not perform.
This is also true for OHS management. You appoint some staff who are worthless and expect the result, it is only a daydream. For name sake, there will be X number of staff, but real performers may be scarce among the X.