the thing about kelly though, is that this is the first year of his career which he's devoted to just pitching. he has the potential to fill out his wiry frame quite a bit and add 3-4 mph on his fastball and it's pretty incredible how fast he's developed his curve and his change. if he bulks up and adds a variation on his fastball, he could be a dominant starter and at age 20 he's got plenty of time to do it