Colbert was injured in 2019, played season with it and his PFF ratings illustrated it. He was pulled in Holiday Bowl due to his poor performance.2 starting LBers they were counting on, gone: Dillon Doyle (transfer) and Colbert (grades or unreported injury I'm guessing). Ourlads has yet to figure out the depth chart. With a new QB they'll need their defense to pick up the slack.
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Both Dillion Doyle and Colbert had ups and downs. Doyle will be fine at Baylor.
Iowa traditionally played 3 LBs from 1999 to beginning of 2017. That ended, after injuries at end of Wisconsin game.
Amani Hooker was moved from S to Cash and Iowa DC Phil Parker unveiled his 4-2-5 with DB playing the OLB or LEO position for Iowa.
Iowa still plays 4-3 against teams using a FB, and tradition set, but clearly Hooker played the Cash right into the NFL entry.
Iowa vs. Nebraska hopefully is played on Black Friday.