giving someone the choice of whoever they want of the rookies is more valuable then mcfadden. As evident by the debates on this board, not everyone is on the mcfadden wagon so you would be limiting your field.
I think the question is designed to assume that McFadden's value with go up between the time of the draft and Aug 15th. I don't know how we are supposed to factor that in, but I think that was kind of what the OP was implying.
That may be the case, but its only if he goes to a clearcut starting spot. If he ends up in Dallas, KC (i know these spots are unlikely) or someplace else where he could spit time, his value can go down. My point was that if he trades the 1.1 pick, there is more value since they can choose any of the 3 with the best spot. If he drafts McFadden its not a given that the value goes up as he hopes. If he ends up in a good situation then his value COULD go up. Its a risk either way.