As a junior, he was named a starter at defensive end, registering 36 tackles (2 for loss), 46 quarterback hurries and 16 sacks (school record).
As a senior, he was a co-captain, posting 62 tackles (10 for loss), 29 quarterback hurries and 6 sacks, while contributing to the team winning the 1984 National Championship.
He finished his college career with 106 tackles (12 for loss), 76 quarterback hurries, 26 sacks and 6 forced fumbles.
On July 27, 1987, the Bengals decided to release Herrmann, to avoid the risk of him being reinjured.
Herrmann was an assistant football coach at Corner Canyon High School.