I'd like to hear other opinions from more experienced managers, since I'm interested on this deal and the perceived value of 2 for 3 and 1 for 2 deals.
First impression, I tend to think you're giving up a little too much, even though I can understand why you would need to make this deal. Brees and Stafford may be a wash statistically, but I do think Brees is more of a sure thing just because he has more experience (although having Tron to throw to is a plus).
So it comes down to McCoy, a bonafide top 5 FFB RB, vs Best + Benson. I would think McCoy has a little more trade value than that. Since he proposed, try to counter offer.
10 Team Non-Keeper, Standard Scoring, Non-PPR
QB - Vick
RB - D McFadden, P Hillis
WR - M Colston, V Jackson
TE - T Gonzalez
K - D Akers
D - Oak
QB - J Flacco
RB - R Tolbert, K Moreno
WR - J Ford, D Moore, D Heyward-Bey
TE - A Hernandez