Robert Esche: Good or Lucky?

Stephen A. Smith of the Philadelphia Inquirer says that even though the Flyers won’t be competing for the Stanley Cup, at least they learned they have a top goalie in Robert Esche (; p:philly).
In his column, Smith touches on the enigma that is Esche: he plays better than he should. He was rarely in position, never seemed square to the shooter, and never seemed to be in control of the puck. And yet he posted a 2.32 GAA and .918 save percentage. He kept Philadelphia in the the series right up until the end. You know. Where they lost to Tampa. So the question with Esche becomes, is he a good goalie with an ugly style of play or was he just lucky during these playoffs?
If I’m Philadelphia GM Bobby Clarke, I’m going to hang on to backup goalie Sean Burke a little longer. Just in case it’s the latter.