It was brought up as a real possibility on WFAN. Coaches and players are allowed to display flags of their heritage. But the current situation and the date it was displayed indicated it could have been a point of contention. They also couldn’t figure out why he was escorted out and not allowed to speak to players and the GM was not even informed. They surmised it may not have been football related especially because they are only 5 games in and playing for 1st place in the division on Monday.
something else brought up is that Saleh may have wanted to fire Hackett, and Aaron was consulted and said no and there was some sort of power struggle that led to his firing.