From Greg Logan of Newsday:
The Islanders' so-called "Committee" is dead. When it became obvious in the middle of last season that the decision-making process was too cumbersome, owner Charles Wang stepped in and clarified the lines of authority, placing general manager Garth Snow in clear control atop the hockey operations pyramid.
There was no formal announcement, but the change obviously freed Snow to act more decisively, as he did on Monday when he told coach Ted Nolan his services no longer were required. It was obvious during the draft and free-agent signings this summer that Nolan already had been rendered powerless regarding personnel decisions, while Snow felt sufficiently empowered to execute his aggressive draft strategy, trading down twice in the first round and amassing 13 picks.
Read the entire article here.
When the GM fires a coach, generally the pressure moves upstairs. So, Snow can expect to feel heat from the fans/media if his next hire doesn't turn out very well.