After undergoing Tommy John surgery in March 2015, Quantrill fell out of the mix for last year's No. 1 overall pick. The Padres used the situation to their advantage and landed him with a slightly over-slot deal at No. 8. The early returns suggest they got the best college arm in the draft. He has a deadly changeup, but unlike most minor leaguers with plus changeups, his fastball sits in the mid-90s, serving as a second plus pitch. His slider is good enough for him to safely project as a mid-rotation starter, but if it were to jump a grade in the coming years, Quantrill would have the repertoire of a No. 2 starter. It will take him a couple of years to build up his innings to the point that he eases workload concerns, but he has a starter's frame, so his body should hold up. Despite barely getting any work at Low-A Tri-City or Fort Wayne last year, he is advanced enough to get an assignment to High-A Lake Elsinore this year, joining one of the best rotations in the minors.