Did I make a good deal here?

[PokerMike4283]

So I'm in a 10 team league in Yahoo (Public 15993) H2H. I made the following trade and it went through unveteod. What I want to know is did I make a good trade and better yet, did it make my team that much better? Where can you see any room for improvement(s)?

The Trade
I gave: Jeremy Maclin and Rashard Mendenhall
and got in return
Arian Foster

My Team As It Stands Now
QB Peyton Manning
WR Steve Smith
WR Austin Collie
WR Brandon Lloyd
RB Chris Johnson
RB Arian Foster
TE Vernon Davis
BN Legedu Naanee
BN Joseph Addai (Is he tradable now to get a better WR??)
BN Michael Vick
BN Nate Washington
BN Tony Moeaki
K Stephen Gostkowski
DEF Green Bay
BN Tennessee