Well and a lot of those times they got beat by a better team, but sure blame the coach...
Well, when a team is outcoached I DO blame the coach. Reid goes into a shell and chokes in the playoffs. I think that's pretty clear at this point.
Last year the Chiefs were up 21-3 at the half, at home, and Reid went into his typical shell and they lost by one point, scoring nothing in the 2nd half.
In 2016 they were yet again at home vs. the Steelers who didn't score a single TD and they lost.
2013 the Chiefs are up 31-10 at halftime, Alex Smith put up 400 yards, 4 TD and 0 INT and they still lose.
It goes on and on like that. If you're consistently staked to 10+ point leads in the playoffs and never seal the deal, yes, I put that on bad coaching.