The NCAA is going to enforce some new rules regarding uniforms, which you can see below. Now look at the above photo of USC players against UCLA last season and see how many would be in violation. Most have their knees uncovered. One is wearing a T-shirt below the jersey.
Fortunately for USC, the NCAA did not address whether you need to wear tights or sleeves that match the team’s socks. It’s still going to be a nightmare for someone to enforce with a program as loose as USC.