My take is this:
10 DB's will be kept, just like last year-5CB's/5Sfty's.
CB- Brock, Culliver, D.Johnson, Cox, Morris. The other 2 rookies will be split on the PS and IR. Cox can also PR, so he has an edge over the other vets.
Sfty- Reid, Bethea, Ward, Stillman. The last spot will either goto a convert (Cooks, Acker/rookie), or hold-overs Dahl or Ventrone, it will come down to ST play, versatility, and $$$$. but only 1 of these guys make it.
If Cox is converted to Safety, then the other rookie may make the CB spot above. But, its gonna be theez 10.