Brian Easton, a more than competent hammer hand...
There is a well-established research finding of ³group polarisation²: when like-minded people get together, and speak and listen only to one another, they usually end up thinking a more extreme version of what they thought before they started to talk.
This was quarter of a century ago, but while we are less ideological today I see a similar pattern. Given a choice between a team player and a competent sceptic the system goes for the former, pretending that team players are the experts and the outsiders cannot be relied upon. Not only do the appointed incompetents bring the average down, but they have not the judgement to identify competence and so the appointments they make lower quality standards further.