Of the names we hear the most, how does the position shake out?

What we think we know:

Mike Davis (Sr): Starter
Michael Shelton (So): Nickel
Dayan Lake (RS Fr): Reserve
Troy Warner (Fr): No RS

The mystery: Akile Davis (So), Isaiah Armstrong (So), Chris Wilcox (Fr)

Each of these guys has been mentioned as a potential starter or rotation guy, yet each has a RS available if needed.

Are there others in the group who haven't been discussed as much who could see the field this year, or are talented enough that they should be considered for a redshirt?
Bent, Greene, Powell, McChesney, Lee, Stewart