This past season, he posted an .899 sv% and 3.99 GAA but he also led the NHL in saves with 1,783 in total. This is a sign that he has no help and the Ducks team in front of him is simply not doing their job.
Despite his lackluster numbers, he was still a great goalie and will likely fetch a lot on the open market. If he goes to a team with a proper defensive structure, he will likely return to his prime.