The offensive rankings speak for themselves so yes the blame lies with those 3. Spencer's last 2 starts
Kentucky: 19/30, 211 yards, 1 TD, 3 pics with game ending pic being close to FG range to tie game, horrible decision to throw that ball while being tackled for supposedly being a game manager qb.
Michigan: 9/22, 137 yards, 0 TD's, 0 pics
From CBS article: The Hawkeyes must find a way to upgrade their dismal offense, which came in ranked 97th in scoring (23.9 points) and 117th in pass completion percentage (54.3%).