I agree with others the OL is solid. Good to see. Pass rush is good on the DL. Run D and LB's on the D are simply awful.
Salter? He's a thrower, not a passer. Nobody is going to have the accuracy SS2 had, but the phrases "wing and a prayer", "sandlot" and "chuck it around" spring to mind. For a fifth year guy he has virtually no awareness of how to read the field in the pocket, just sling it. If he isn't going to run it, CU is hosed, because he isn't beating anybody with that arm. Poor accuracy, poor decisions.
So, I think you design 3-5 series with the ones for Lewis over the next two weeks and rotate JuJu and Salter to see what you have. Lewis is the future, but if Salter can't do any better than that, Lewis might have to be the present. Might as well see what he can do in live action now so you can bench Salter if you have to.