Brandon admitted to The Buffalo News there was a recent argument at practice, but Monos wasn’t present and the exchange occurred among Marrone, Brandon and General Manager Doug Whaley.
A Bills source told The News that Marrone never dared management to fire him during the argument, although he did make a similar statement over drinks later that night with Brandon, Whaley and Monos, but the group was laughing about it within minutes.
http://www.buffalonews.com/sports/bills-nfl/brandon-marrone-deny-report-of-spat-20140905?two-bills-drive