As long as they maintain their academic standing and withdraw their names by June 16, both would be eligible to return.
Lyons was in and out of the starting lineup last season as a junior. He led the Big 12 in field-goal percentage at 58.3 and had a team-high 13.1-point average.
Carroll, who started 30 of 32 games as a junior, was the Big 12 newcomer of the year after averaging 13 points and a team-high 6.7 rebounds. The Vanderbilt transfer hurt an ankle in December, which hampered him the rest of the season.