SPARTANBURG, S.C. – Running back Christian McCaffrey is plenty fast, but he doesn’t enjoy playing catch-up. McCaffrey is all about being prepared – mentally and physically. So last year, having to play catch-up as a result of missing spring practices to finish the semester at Stanford was not ideal. “That helps a lot – being able to be there in OTAs,” McCaffrey said after reporting to his second NFL training camp Wednesday. “The comfort level is definitely higher.”