The question is what it is?
You have an overqualified backup behind a starter who has been the clear starter since the lockout for the Pens (With magnificent endurance but uneven results but a Cup ring) but the starter is significantly struggling while the backup is excelling. Age and contract status might prevent such a move for the Penguins. However, at the same time the Penguins are Cup contenders and you don't want to waste a season of Sid's and Evgeni's prime if you have questionable goaltending?
How much longer is Fleury the starter if you think he will be replaced? If not how long a leash should he get?