Cooper, Kellogg, and Offutt were at the forefront of OU's success during Groce's time there. Stevie Taylor and Ricardo Johnson were also a pain to deal with as an opponent. Don't forget, the year he left, he had Caris LeVert coming to OU before decommitting after Groce's departure and heading to Ann Arbor instead. Groce is a smart man - he isn't about to abandon the system that had OU on the verge of total MAC dominance.