Goals allowed, is always correlated to the GAA. That GAA is correlated to the sv% if people like to follow that thing.
GA is always a product of the team.
If the GAA is near the bottom, you either look at the goalie or the team that needs to be fixed. Andersen GAA is at the very bottom.
However, Andersen is tied at 2nd for wins at 10. The only goalie that has more wins is the Tampa goalie.
Incidentally, the team defense started to look better and the Leafs were trying to play 3-2 games after they moved Bozak to the 4th line.
NHL.com - Stats