Imo Sparks is one of the worst goalies to play in the NHL if not the worst from a fundamental standpoint probably since the lockout. I don't think Hutch will be worse, as a matter of fact, I think this is something that'll be difficult to accomplish, Sparks is completely propped up by an amazing team, other top 5 backups:
Copley, 2.6 gaa and 915sv%
Domingue, 3 gaa and 905sv%
Brossoit, 2.1 gaa and 940sv%
Smith, 3gaa and 890sv%
Dell, 2.7gaa and 900sv%
All of them have played more than Sparks who was literally put in the best position to succeed, yet he is even falling below the 910sv% average for backups on the best teams in the league. Sparks is really really bad and I'd honestly at least rather a goalie who played the same as his mediocre results but didn't look like a fish out of water in the net.