The 3 main spots needed to be filled through FA/trade are the before mentioned QB, RB and a pass rusher.
We need a QB to challenge and possibly unseat Henne as the teams starter.
We need a RB and rumour is they want a change of pace guy to compliment the power running of Daniel Thomas. Im not buying it. When Daboll was in Cleveland he had Jerome Harrison who at the time was considered to be on the cusp of 'breaking out' with a similar style to Jamaal Charles. Next season Hillis was brought in and Harrison traded for another RB/FB in Mike Bell.
IMO a pass rusher is must. We need someone to compliment Wake on 3rd downs but also as cover if Wake is injured.
Which 3 would you sign?
I would go:-
Kyle Orton....Daboll wants a 'smart accurate QB, with pocket presence'. Orton fits the bill better than any other QB available.
Ronnie Brown....He is coming off a full season and another year remove from serious injury. I also believe he wants to stay in Miami and a preferable deal could be arranged. Also he again fits what Daboll likes.....'a power runner with good hands'. Of all the FA available I do not believe there is a better back who fits this mould.
Manny Lawson....Nolan had him while HC of 49ers and so far he has not fulfilled his potential but PFF has him as one of the best pass-rushers with consistant pressure without the sack stats to boot. Considering how bad the 49ers secondary has been over the last few years this could account for the low sack count but the fact Lawson has been playing all 3 downs, IMO with his ability to also cover TE's he would be perfect used in rotation with Koa Misi and as depth behind Cam Wake.
Again who would your 3 be??????