Isaih Austin is basically a guard in a centers body so I dont think that his athleticism is in question and hes way ahead of Coleman in this category. Brandon Ashleys game is based more on athleticism right now rather then polished post moves, and I cant really comment much on Ridley cause I havent seen him play that much, but he seems to be a similar player to Coleman and if the rankings are any indication he seems to be on an upward trajectory meaning that he probably has a better motor and shows more every time hes on the floor.