I personally wouldn't make this trade.....Roddy is a Top WR (as in top 10) and DMC is going to breakout this year and be a nice RB. MBIII will split alot of carries this year with F.Jones and I don't like this offer at all for you!
If anything, try and combo up any of (J.Jones, McCoy-possibly to the Westy owner, Moreno, D.Brown-possibly to the Addai owner) with a WR (Hixon, Morgan, possibly White but I wouldn't).....and trade them for a decent RB.
Your WR's are tight right now and your RB's are servicable (DMC, Pierre)....so keep your WR's and do some packaging to get a great RB and/or a better backup QB and a better Def. (don't like Wash Def)
BTW.....your trading Hot Rod also depends on how many RB's and WR's do you start? Do you have a Flex position? Also, please include the league settings.....is it PPR, etc....(just helps determine an approach)
Definately do not make the trade though!
Standard H2H 12 Team 1 Pt PPR, Start 1QB, 2RB, 2WR, 1 FLEX (RB/WR/TE), 1TE, 1K, 1 DEF