This seems to be old news however I had not heard about it till I went to the KC Star to see what was being said about Denver's landing Manning.
I first clicked on this story
Chiefs whiff on chance to improve at QB
Inside that story there's a link to this story
Arrowhead anxiety: Turnover off the field causes concern
So The Star is wondering why Manning didn't even give KC a visit and attribute that to the fact that the organization has got problems with drama etc. Read the stories and you'll see what they are saying.
What I'd like to highlight here is that Todd Haley among others felt as if their phones were tapped by Scott Pioli and upper brass. It was even cited that Haley was looking around for bugs in the facility
I find this stuff completely incredible but there it is in black and white from the very city the team resides.