Edmonton was tied with the New Jersey Devils for the sixth-most goals-against (271) last season, and its penalty kill was second worst in the NHL (74.8 percent) behind the Chicago Blackhawks (72.7). The Oilers averaged 9:11 penalty minutes per game, which was sixth highest in the NHL. Coach Dave Tippett, who was hired May 28, will try to correct these defensive liabilities. Tippett has been known for his defense-first systems, but it's worth noting the Phoenix/Arizona Coyotes allowed the 13th most goals in the NHL (1,728) when he was coach from 2009-17. The Oilers likely will need significant improvement from individual players rather than just the coaching staff.