Currently, with the latest "casualties" ND is at 84. But we have to be careful because with the probable exception of Stepherson who's all but toast, the other 3 recently cut loose may have avenues back to the team.
Given the track record, it is possible that we will have more guys leaving on their own but I would guess worst case might be 2.
Since ND is still chasing guys, I would bet that Kelly either anticipates more guys leaving and/or knows that some of the 4 recent guys aren't going to be back in the fall.