It's a bad decision to start ANY goalie off a back-to-back...statistically it's been proven that the level of play dips from one game to the next.
Add to that Anderson facing 35 shots last night as well as playing OT and its a bad recipe.
I don't like this decision at all. Have some faith in Lehner to get his game back. This is botching his development when you're not even giving him the starts other back-ups get.
It's been shown that on average a goalies Sv% drops to below league average in a back to back, if I remember correctly, to somewhere around .905 for starters.
The thing is, Lehner hasn't been giving us .900 Sv% hockey of late, so even with the expected drop in Anderson's numbers, it will likely still be better than the expected results from Lehner (as of late).
People have spun the whole never start your goalie on both ends of a back to back too far. There are cases where it definately makes sense, for example, when your starter is significantly better than your backup.
Found the article,
http://www.broadstreethockey.com/20...a-flyers-goaltending-stats-back-to-back-games
Basically, a rested goalie saves about 1% more shots, so if Lehner is stoping .900 and Anderson is stoping .927, you're still better off with Anderson in nets tired.