For over a month, the Canadiens had a perfect rotation with three goalies, regardless of the opponent. Since Samuel Montembeault signed his contract, the rotation continues, but he plays two games in a row before giving way to Jake Allen and Cayden Primeau.
So, no one was surprised to see Monty against the Penguins and the Islanders, and then Allen against the Jets. While in Minnesota to face the Wild on Wednesday, it should theoretically be Cayden Primeau's turn.
It's worth noting that Primeau excelled in his last start, but since the World Championship at the beginning of the summer, Monty has been simply dominant. He belongs to the NHL elite in several categories, despite being on a team in rebuilding mode.