Whatever the hell that's supposed to mean.
McKinnley has been on campus for 4 years. He was a 4 star recruit coming out of high school that many teams (including USC) wanted. How in those 4 years is it he's just seeing playing time now? If he showed in practice what he did on Saturday, the coaches would have had him on the field sooner.
And let's be honest, if Boykin doesn't go pro, Young isn't hurt & Austin isn't suspended, does McKinnley even see playing time (outside of special teams) in 2019?
If Kelly/Long didn't notice how good McKinnley is in practice then that's scary. It means there are other players they haven't noticed (Lenzy maybe?)