Re: Forget not the bozocalypse
"They're only there because their manglers are totally incapable of distinguishing horses from donkeys."
In a lot of cases the ones who were good got promoted to management irrespective of whether they had the requisite skills for management. The result is that we have management who weren't appointed for their management skills which are in consequence pretty average managing work at which they'd be very good but being performed by a mixture of those who aren't good enough to be promoted or too new to be judged.
(There's also an argument that some of the useless ones got promoted to management in the hope that they'd be less able to do damage there.)