Would Al Beal be considered a "big name?" He might not be, considering he had some OU and Big 8 records for rebounding and blocked shots, at least at one time. I do remember that he was considered a "project" due to only having played two years of high school basketball before he got to OU. He was also one of my OU classmates in '79, the semester that we won the league.
And, as was mentioned in Tramel's blog about the epic OU-Mizzou game of '77, he scored the game-winning basket in the final 15 seconds.