There are limits on the number of people who can work with the players. I think only Woodson, Ya, Kenya, and Walsh are "coaches" who can be involved in recruiting and in-game coaching. There are some other rules about noncoaching staff that can engage in skill instruction presumably that would cover Calbert and Hulls but I'm not sure exactly how that works.Not only Calbert.... they have Hulls over there as well... that could be working with Trey and Cupps in 3 pointland