I believe Brennan Thompson would have been better off at USC, Ole Miss, Tennessee with a staff that appreciates his speed and can make him comfortable in his environment.
This is not a criticism of Sark and/or his staff. Seems clear that Thompson was neither happy nor comfortable on the Forty Acres. FWIW, I doubt OU's staff can develop his talent to put him in the first two rounds.
I hope the young man lights it up in the Dust Bowl and finds out in Fair Park that DBs love to knock the crap out of people.