Hardly. Ask any old school shit bird in this place, they were trash for like 40 years. Essentially they did almost nothing since their last NFL Championship in like 1960. When Andy Reid came on deck, after a brief period fo correction, he turned that Team into a juggernaut that went to the superbowl, and he did it with a rolling dumpster fire like Donovan McNabb. The winning culture he somehow built in that awful town has sustained itself into what eventually became 2 Championships and is only now starting to peter out.
Similarly, after Philly, he took a Chiefs Team that hadn't done shit in the previous decade or so (I don't follow the AFC that close, remember Romeo Crenell?) and turned it into an immediate Superbowl contender with an Alex Smith that had just washed out of San Francisco bad enough to be replaced by a fucking RB pretending to be a QB.
True, he wasn't able to seal the deal with some rings until he got Mahomes as the missing piece, but his record of turning around garbage franchises into winners across multiple Teams is really god damned impressive.
Traditionally shitbag teams like the Browns, Raiders, Jets, or Cardinals, can only hope he has one more team left in him before he hangs up his hat for Canton.