In this week's "Seven from 77," Jon breaks down some comments from a few Wolverines, including WR Mike Sainristil, RB Blake Corum, and OL Zak Zinter. Then, Offensive Coordinator Josh Gattis stops by to discuss his impressions of the team in spring practice (23:00) and size up each offensive unit at this point of the offseason--offensive line (29:45), tight ends (35:40), wide receivers (37:40), running backs (42:45), and quarterbacks (47:30).