I doubt Wilcox will leave unless he feels buried on the depth chart. Given that he is UK's leading returning rusher, Wilcox is not buried on the depth chart. Stoops is concerned about Wilcox's level of maturity, because it translates to judgment on and off the field. Wilcox has a good NIL deal at UK. As long as he understands Stoops is trying to make a better man out of him and improve his life, Wilcox should be fine.
But there is a caveat on the roster named Tovani Mizell, who was once committed to GA before injuring his knee in hs. Mizell spent last season completing his rehab and working out. According to the official UK webpage, Mizell is 6' 223# now. He has a lot of upside and, if healthy, could conceivably take snaps away from any other UK RB. With 4 years of eligibility left, Mizell could eventually change any UK RB's outlook.