Not saying anyone will leave, just that they all have possible reasons or some history of moving.
Nwuba - Graduates
Bona - NBA draft
Euros - Lack of playing time, better off in Europe, not encouraged to stay by Cronin
B. Williams - Want to play closer to home (NY)
D. Williams - Lack of PT
Stefanovic - Already transferred once, could do it again
Andrews and Mack - Changed high schools for better opportunity
McClendon - Needs a change of scenery