Never liked Daboll.
I remember when he was on the side line (before he moved up to the box) and he would be screaming at Josh Allen. Screaming is piss poor leadership, I know because I've worked for several screamers in the military. It's a miserable experience. Screamer's units always under perform and have poor morale.
I remember this season when Tyrod made a mistake at the end of the half, and Daboll was in his ear right away. The screaming didn't help the game outcome.
Therefore, I'm not surprised to hear of tension in the Giants organization.