The Golden Knights will be in search of a new head coach this offseason. With sky-high expectations, the Vegas Golden Knights failed to reach the playoffs for the first time in franchise history this season. Major changes were bound to happen as a result, and now the first domino has fallen. The Golden Knights announced Monday morning that Peter DeBoer has been relieved of his duties as head coach. DeBoer, who spent parts of three seasons behind the Golden Knights bench, ends his tenure in Vegas with a 98-50-12 record, along with a 22-17 record in the postseason. “We would…