Avalanche general manager Joe Sakic spoke enthusiastically about the addition of tough guy Kurtis MacDermid in July. Coach Jared Bednar echoed those comments Wednesday during a preseason-opening news conference at Ball Arena. There is a new sheriff is in town, and MacDermid, 6-foot-5, 235 pounds, adds toughness to a team that has lacked an enforcer to make opponents think twice about crossing that gray line with Avalanche players. “I see him as a big addition to our group.