We’re not talking about the entire unit. We’re talking about one group: linebackers. You can’t just assume linebacker play will never be an issue at OU just because BV is the coach. Linebacker play could absolutely take a step back if the planets don’t align. But that doesn’t mean the entire defense will be bad.Nobody worried about offense under Riley for obvious reasons. The same logic applies to the best defensive mind in CFB. It’s not hard to see the logic in that thinking