Nick Sirianni stood on pressbox furniture at Arrowhead Stadium and celebrated like no one was watching.
The Eagles coach was a quality control assistant for the San Diego Chargers at the time, and the sting of Andy Reid letting him go the year before was still fresh enough for the 2013 matchup against the Kansas City Chiefs to mean something extra for him.
So in the aftermath of the Chargers’ 41-38 victory that handed the Chiefs their second loss in 11 games, the passionate side of Sirianni took over.