Rowe replaced Hills in the fourth quarter of Saturday's 48-27 defeat. Rowe threw three passes, two of which were intercepted.
But coach Randy Edsall apparently is looking to shake up the team, starting at quarterback. Hills went 15 for 30 for 151 yards and an interception last week.
Hills won the job over the summer, beating out Rowe - who has three career starts - and Garman, a transfer from Oklahoma State.
Maryland hosts South Florida on Saturday.