If he's really willing to retire.....then you can do all what you propose without trading the coward.....leaders want to step up and lead....not run for the hills.....
Let's face it, your not getting much at all for him. What, a 3rd rounder???? At best......screw it....let him sit.
Prepare for life without him, but you don't need the shitty compensation you will get from him trying to force himself out. Let him retire if that is what he wants to do.
As far as your plan...
Not sure what you think the issue with Williams is, from watching the games, he sure doesn't seem to be a glaring weakness. Solid vet and good locker room guy. Cincy needs more guys like that not less. Collins has shown flashes, but not consistent enough for me to think he's the future. Need to kick Smith in the ass and get him ready to be your RT, if he can't be your RT, he's not going to be your RG.....it's effort and self-discipline with him not talent. Position change is not going to help.
Not sure you need to spend that high of a pick on a RB in today's NFL. There is enough talent out there on the cheap IMO that can be productive and enough other needs to spend a high pick on a RB.
With ya on the QB.....and wasn't a big Newton fan, but from the reports I heard on the workout and the fact that he is doing a workout this early, I was impressed. He's built like a fast Big Ben......big, fast, and a load to bring down. If he can throw at all he could be scary.
As far as Green, if ya don't go QB in the first, he's a good possibility. And yeah, ocho can go for all I care now.
As far as sucking......team still is not that far off. If Palmer would just concentrate on getting better the team could have had a nice bounce back, but he just doesn't seem to have the fire that is needed so they need to find someone that does......man, I would love to find a way to pry Kolb from Philly.
Okay, moving on.
If "I" ran the Bengals....
I would let Carson go. Lets face it, this could be the chance to totally blow things up and rebuild this team in the mold of a REAL AFC North team. Defense has needs, but most would be fixed if injuries don't happen. Keep your Def. FAs including Jonathan Joseph and the back up Lbs. Draft another young DE and you are set.
On offense, you need to totally rebuild. Keep the C, LT, LG drop Williams the RG he is old. Move your high draft pick from RT to RG, and move in Collins at RT. You will need to draft some depth, but not a huge issue.
Then you draft a Rb, probably early 2nd round (Love the steam roller from Illinois....) if you resign Benson you STILL do this.
First round - I say you look for a young mobile Qb, cause until the O-line is fixed and gelled, he will need help. Newton may be that answer. Not a fan, but his mobility may win you a game or so.
Then you look for best Oline, Dline, Cb and Wr as you go.
I am half tempted to snag Green at WR in the first. A wr core of Shipley, Simpson, Green could be solid. Let Ocho go for more lower picks to fix Oline.
Yes, you probably suck this year. Maybe not, but you have a foundation to build with, and you axe the bad attitudes totally.