Beebe and Hill both need to make the team.
Rhodes should be far enough along to be the senior guy in the CB room, and Iloka and Smith certainly have the knowledge and experience to lead the S/DB combined. Newmans biggest attribute was his leaderhsip and knowledge of the game, he can still bring those things as a position coach, but his skills have shown enough decline that he would be a liablility in coverage, not Sherels like liability, but still a pretty noticable decline from the the top 4 of Rhodes, Waynes, Hughes, and Alexander.
Beebe and Hill make Newman and Sherels cut-able.