there, then (2) Spencer Johnson is our only senior without more eligibility so he leaves and that is +2, (3) Chandler is back from his mission and takes a scholarship so +2 to +1 and (4) Davis is incoming freshman who most have said is playing right away without a mission so he takes up the last free scholarship.
Assumption here is also that Waterman gets a medical redshirt from one of his earlier seasons, so that he actually could play next season too. But that is not a sure thing.