Really hard to judge a team objectively with that many players/starting positions.
Your RBs are great. You could very well end up with 2 of the top 5 RBs. Hunter is poised for a breakout season with the right luck, and if that happens he could easily be top 10. He is killing it with limited opportunities in the preseason. Easy to see Brown having a great season. He can catch and run, and these RBs who have burned people in prior years are the ideal buy-low candidates a year or two later. Brown is still really young.
Your WRs are solid. Crabtree is the biggest x-factor. He has all the talent, and after being overvalued in prior years it seems like there's some value there. The 9ers don't throw it all that much, but he has reportedly looked good in camp and has the tools. If he actually lives up to all the previous hype this year, you have an exceptional top 3 WRs.
Your TEs are good. Rivers apparently can't get the ball downfield as well, which probably means even more passes to Gates, who already gets a ridiculous amount of targets. The great thing about a really good TE is that even with a safety on him, he can pretty much post them up. He doesn't need to juke anyone. And I don't care how old gates is, he can still beat most LBs with the routes he runs.
You QBs...man...you do need a little luck there. Manning has not looked good. Maybe he'll get his mojo back with a few more reps. RGIII, we will just have to see how he looks in real games. He will have opportunities to make plays. If he can do it, he could wind up having a very good seaosn. I guess you never know with Dalton, but you're pretty much holding your breath that one of these guys makes a big leap.
I definitely wouldn't step off the ledge, but I wouldn't worry about quitting smoking or cutting down your drinking right now, either.