I would not accept that trade. If you need to start three RB's you have three HEALTHY STARTING RB's. That is a rarity right now with injuries being so prevalent.
Just because you are 1-2 doesn't mean anything. LT and Dom haven't been performing early but that doesn't mean to give up on them yet.
Try to keep an eye on waiver wire and see if you can snatch Michael Clayton, Rache Caldwell, or Keary Colbert at WR. I was weak at WR and picked them up earlier. The might not get you a whole lot right now but I think they will turn things around especially Colbert and Clayton. They won't be #1's by any means but could turn into reliable #3's and if your lucky #2's if the correct matchup is found.
If you feel the need to upgrade at QB see if Collins is available. And at RB see if Steckler (doubtful he is), Leonard Henry (new starter at Miami), or Antose Pinner (with K Jones being out 2-4 weeks) for RB help if you think you need it. People are saying to stay away from any Miami RB but a starting RB even on a pathetic team has some value IMO.
One thing I learned the hard this season allready is not make a trade just to make a trade, sometimes doing nothing is the correct move.