I will base this off of what most viewed as players on the bubble, and give my insight on who I think will and will not make the final 53 man roster:
Will Make It:
-Battle--If this really was a question at any point it isn't now. The only question about Battle is if he's the #2 or 3 guy on the team?
-Nate Davis--I have no doubt that he won't last on the PS, and I also have no doubt that Singletary envisions a 2010 QB competition involving Nate.
-Kory Sheets--This guy may prove to be our best red-zone threat with his leaping ability, agility, and speed to the outside. If we want to be a running team, we are going to need a RB by committee. That's the reality of today's NFL.
-Harris--Has anyone noticed that our pass rush can use all the help it can get? I could get that Singletary has.
Won't make it:
-Zeigler--He has not separated himself at all from all the other 3rd stringers he's been going against. With the possibility of 4 QBs and 6 RBs (FBs included) can the team really afford extra receivers who are not making a case for themselves? His PS eligibility doesn't help him much.
-Green--I think Hudson makes the team over him. Lots of other decent corners on the roster.
-Curtis Taylor--He's done close to nothing, and will likely end up on the practice squad.
Not sure yet:
-Damon Huard - will we keep 4 QBs? Can we trade him for a backup RT?
-Michael Spurlock - Doesn't offer much as a return guy, but while Crabtree is MIA can he be the one to hold the spot warm?
-Alex Boone - Is there someone the team trusts to take over Marvel Smith's position? If not, Boone's chances increase