The Montreal Canadiens shouldn’t be in the market for a goaltender this offseason, but that only applies to starter Sam Montembeault and the backup Cayden Primeau. Instead, a No. 3 goaltender, or an “insurance policy,” is something they do need. Montembeault was excellent this season, even if his basic numbers don’t show it. He logged just a 0.903 save percentage, a 3.14 GAA, and zero shutouts, but look at the improvement he made compared prior to his age-27 season. A GAA of 3.49 and a save percentage of just 0.896 before 2023-24 should indicate how far he’s come, and even...