I think we can write:
Solder
Vollmer
Mankins
In as absolute locks, or at least about as close as you can get without being on the Brady/Revis level.
I think we can put Cannon in as a near-lock.
To me, that leaves competition for 4-6 spots, with an emphasis on the IOL, and also with Cannon as the wildcard who seems to range (in the minds of posters/reporters) from potential starting RG to 4 position backup. Guys who's 'proven' that they can play center:
Connolly
Wendell
Stork
The significance here is that cutting either veteran would mean that Stork, college-proven but not NFL-proven, would really have to step it up in a hurry. Additionally, cutting Connolly would also undercut the versatility situation. On the other hand, Mankins reported ability to play center, if necessary, is something that BB might take into account. I look at Wendell's struggles last year as a major factor in weighing all of this.
http://www.bostonglobe.com/sports/2...ensive-line/3Ubs5l9rA9OOm8OOioNLuM/story.html
So, it seems to me that BB's take on the center position is crucial here, because it impacts Connolly's ability to make the team.
Solder
Mankins
Vollmer
Cannon
Stork
Fleming
Connolly/Wendell (Likely Connolly, IMO)
seems a pretty likely '7' to start with, when I combine past veteran play and past history with 4th round draft picks.
Devey
Kline
Hilapio
Wendell/Connolly (Likely Wendell, IMO)
Would seem to be '4' players vying for 2 spots, unless Cannon isn't as secure as most of us seem to think. Of course, just when we think we've got BB's thought process pretty well mapped, he adds a new wrinkle but, playing the odds, the above breakdown makes the most sense to me, as of this minute.