FORT WORTH, Texas -- Trent Johnson has been hired as TCU's new coach.

Johnson replaces Jim Christian and will lead the Frogs into the Big 12 Conference next season.

Johnson's introduction Monday came a day after he resigned from LSU, where he spent the past four seasons. He has a 226-185 career record, having taken Stanford and Nevada to the round of 16 in the NCAA tournament before going to LSU.

Christian, who had been at TCU the past four seasons, is taking the open job at Ohio. He returned to the Mid-American Conference, where he was Kent State's coach and had six 20-win seasons before going to Fort Worth.

The Horned Frogs are moving from the Mountain West Conference to the Big 12.