Didn't read through any responses and it might have already been said, but if it has I will repeat it.
This is why I think shit canning Pioli or RAC wouldn't solve anything. There is one common denominator of this team that hasn't really changed in all the years of coaching changes and management changes. And that is the Hunt family.
When you leave the kind of dough on the table that the Chiefs have over the past years its pretty clear they aren't interested in becoming championship caliber.
Of course that doesn't explain away the horrible choices management has made in the money they have spent.