Ok, don't start - I'm not calling anyone here stupid. It's an old reference, I think back to Bill Clinton - it was "it's the economy stupid."
Anyway - my point here is, that most of these same players were here in 2010, when the Chiefs won the Division and went to the playoffs. The Offensive Coordinator - Charlie Weis, Assistant - Bill Muir. Then came 2011 - OC = Todd Haley & Bill Muir, Charlie is gone, JC gets hurt, Moeaki gets hurt, Cassel goes down and we have Tyler Palko (wtf???) 2012 = OC is Brian Daboll - but the other three players are playing.
Cassel goes from Pro Bowler in 2010 to worst in the NFL in 2012.
I put all this mostly on the Offensive Coordinator - with Charlie, Cassel was excellent, with Muir, he was mediocre but with Daboll, he's pathetic.
Get rid of Pioli - fine. Get rid of Romeo - fine. But I think the biggest issue here is Daboll (and Nick Sirianni, the WR coach) - our receivers are pretty bad, Baldwin should be a stud by now, he's a 1st round pick - but Cassel never goes through his reads, he ALWAYS stares down Bowe and throws it to him regardless of how many defenders there are around him.