Jackson, the former Center Grove standout who transferred to IU from Tennessee, was Kurtis Rourke's backup this season, and helped lead the Hoosiers in the second half of the Nebraska win and started the victory over Washington.
Jackson, the younger brother of IU basketball star Trayce Jackson-Davis, completed 27-of-37 passes for 349 yards, four touchdowns and one interception this season. He also rushed for three scores.
Rourke is out of eligibility and Curt Cignetti and staff have been entertaining potential transfer targets, including Cal's Fernando Mendoza (older brother to IU freshman Alberto Mendoza) and Penn State's Beau Pribula.
Jackson's decision to enter the portal only increases the need for the Hoosiers to add a veteran quarterback (maybe two) this offseason.
Along with Alberto Mendoza, IU has another former Center Grove state champion QB Tyler Cherry on roster. He, like Mendoza, redshirted this season.