Just watched the GWG goal again. Yes Gryz gets outmuscled by Tavares too easily, but you also have McAvoy and Coyle both drifting in towards the net with their backs completely to the open ice, guarding nothing but space. Fair enough for one to be covering the low slot, but both is blown coverage and bad communication. And just before that you have a cross-ice pass from Coyle to Marchand that fails to connect under zero pressure, and the same two forwards both blew good chances to score earlier in the period.
Not trying to cover for Gryz - his substandard playoff record is well-established. More to make the point that there's plenty of blame to go around. Too many guys, from the top down, not thinking clearly and making avoidable mistakes. The mental issues are collective.