As revealed by Buffalo News' Tyler Dunne, Bills head coach Sean McDermott referenced the hijackers of 9/11 to help encourage his team:
This comes from a team meeting which took place a few seasons ago, where McDermott was trying to teach his players about organization.
He wanted his team to get on the same page with teamwork, and referenced the hijacker's at doing so.
Since this article exposing McDermott came out, he addressed the media and explained that he regrets his comments and plans on speaking with the Bills today.