Should OJ Mayo stay in College another year?

Watching that game on tv last nite versus ucla proved that OJ Mayo needs to stay another year. I understand that he is leaving no matter what, but he really isn't all that good to me. Don't get me wrong, he put up 29 on my beloved Huskies the week before, but he seems like if he went to the NBA he just be another decent player, not a star, maybe not even that-who knows. I think him and Kevin Love aren't ready, and yes Love is a best, I know, but so were Craig Smith, Sean May and Marvin Williams.