Getting coach to let Grzegorz stay in the net after an awful goal in game seven is probably not that hard: look at his save percentage over the past six games. Goaltending is a game of averages, and Grzeorgz's average of bad goals per game is so low that the coach can and should write that bad goal off as a fluke. Grzegorz knows how to keep his head in the game. His one howling bad nightmare goal of the series is behind him and can be safely relied upon to not happen twice in the same game. Furthermore, this is a Challenge Cup winning goalie; a known commodity and not a hot rookie or a career fluker. Pulling him after a howler like that would be far more embarrassing and humiliating than leaving him in for nine goals against on a genuinely awful night in the regular season. Just let the man play it out. Show some trust, and he'll show you the cup.