The Bears' sophomore shined to help Cal come back to take down Northwestern State on Saturday at Haas Pavilion.
Rolovich is the second former college head coach to join the Bears' staff this week.
The former Utah State offensive coordinator will hold his first full-time role on a Power 4 coaching staff.
The St. Louis native was ranked as the No. 51 prospect overall by Rivals in the 2022 class.
The Boston native began his coaching career as a graduate assistant under Bryan Harsin at Arkansas State.