To clarify a bit, I don't have anything at all against Brown or Mikell as NFL players. I just view them as guys who you're always going to be looking to upgrade from. Brown is a top-notch nickel type guy in my view. trust me, I've seen his type for years in Pittsburgh's defensive backfield. Serviceable indeed, but not lynchpins. Mikell is a fine player when complementing an elite counterpart, which he no longer has with the departure of Dawkins.
What I'm saying is, assuming the other 1st rounder is dealt for Bolden.. use the remaining picks to take 1 or 2 developmental secondary guys with the hope of hittng a homerun with someone.
I hardly believe Arizona would turn down the 1st and 3rd from this year, plus maybe a 4th from next year for Bolden, assuming Philly wants to ante up that many picks.