Greg Maddux ALSO doesnt throw very many 90 mph pitches... Same with Jamie Moyer, that guy never hits 90..
What Cotts has is great movement, and I saw on another post here I think it was by Rex, Cotts uses all of the strike zone. top left, top right, bottom left, bottom right, thats why he has some walks because he never throws pitches right down the middle to get hammered.
I wouldnt mind seeing Cotts in the bigs this year. If he can help us, then I would like to see him.