The Avalanche added former Seattle head coach Dave Hakstol to their staff Tuesday as an assistant to boost a power-play unit that struggled in the postseason.

“Dave brings a wealth of knowledge and experience behind the bench and will be a great fit on Jared’s staff,” Avalanche general manager Chris MacFarland said in a team statement. “He has an extensive coaching background with a lot of success and will be a valuable addition to our team.”