Sounds like this was a package deal. From SI:
Hunter's departure comes on the heels of Tigers head coach and Pro Football Hall of Famer Deion Sanders departing to take the same position at Colorado on Dec. 3.
In the weeks following his hiring, Sanders has been active in bringing key pieces of his Jackson State regime to Boulder. Quarterback Shedeur Sanders, Deion's son, entered the transfer portal shortly after the Celebration Bowl, and is expected to join his father with the Buffaloes.
Similarly, Sanders told fans in an Instagram chat last week that Hunter would join him in Colorado "real soon.