Crable - (IR x 2) probably take a miracle for him to make the squad at this point
Wheatley - he's had a good chunk of two seasons and hasn't gotten it
Brace - had a hard time getting snaps even when we needed him on the field
Tate - (IR) was projected primarily as a KR/PR, IIRC, so who knows
McKenzie - (IR) was originally projected simply as depth, IIRC
Ohrnberger - another guy who couldn't get snaps even when we needed them
Bussey - (IR) originally projected as depth
Richard - other guys were promoted off the P/S even when we needed DLs
Try this again (not just you, but anyone) but evaluate them on their abilities. What can or can't they do that will affect their ability to make the roster or get on the field. As far as I know, nobody above has an injury that is preventing them from practicing/playing. As far as I know, nobody above has gotten slower, weaker, shorter, dumber or less talented in the last year.
Here are some of my perspectives on these players:
Crable: If healthy, looks the part of a 3-4 OLB. Lived in the backfield his senior year.
Wheatley: Didn't see much CB action in 2 years except against Indy.
Brace: Actually saw some time early but visible footwork/leverage flaws.
Tate: Belichick wanted him on the field in the regular offense, going 4-wide when he was available.
McKenzie: Belichick doesn't gush over draftees unless he expects them to contribute.
Ohrnberger: No surprise he didn't see action. Needed to bulk up. Interested in seeing his progress.
Richard: Paid like a top 53 guy and has nice size and strength at DE.
Bussey: I got nothing
So outside of my complete ignorance of Bussey, that is an intriguing group. At the very least, they combine with the 2010 draftees to expand the skill pool that the team can draw from. That is 20 players from which I think the Pats would be THRILLED to get 8-10 gameday actives.