For the past two seasons, the Colorado Avalanche searched for an answer to its second-line center question. When the 2024-25 campaign begins Wednesday night in Las Vegas, that spot in the lineup will no longer be a problem. Casey Mittelstadt is not only a solution, he could be a critical part of how the Avs navigate early uncertainty and why this club could make another run at a Stanley Cup once the roster is whole. “I think he’s going to have a great year,” Avs star Nathan MacKinnon said.