Doug McDermott didn't make 14 shots in a row or outscore the opposing team by himself in the second half as he did four nights earlier. Creighton's national player-of-the-year candidate did, however, turn in another virtuoso performance after halftime Tuesday night. McDermott overcame a slow start to score 21 of his 31 points in the second half and help the 12th-ranked Bluejays pull away for a 79-68 victory over Northern Iowa.