I think this pretty much nails it
Phil Savage @SeniorBowlPhil 22m22 minutes ago Fairhope, AL
In Alonso/McCoy trade, each head coach thinks his system can "manufacture" production from position. Rex on D at ILB and Chip on O at RB.
Bills assume 10 mil, Philly 700k.
Bills get a Rb who has led the NFl in rushing, has the sickest moves since Barry, and his career low for a season is 4.2YPC (better than the typical average of a starting RB).
Eagles get a one hit wonder coming off a torn up knee whose only NFL production came behind playing in free range behind a dominant line.
Sometimes you get what you pay for.
If this were Adrian Peterson, even at his age and salary, people would be saying "OMG! Rex has a stud RB..He's gonna be awesome!"
A great deal of this reaction is coming from A) the rarity that big name players are actually traded and B)the short-term bitterness many Shady owners from last year are remembering as their basis of Shady.
People who pay big for players and get burned love nothing more than to see those players fail. But they forget that sometimes GREAT players have down years.