Bills RB James Cook's trade price is lower than expected

NFL trade prices can often be a bit unexpected.That's particularly true at positions like running back, which has lost value across the league in recent years.So in a new article by ESPN's Bill Barnwell, the discussion of James Cook's trade value maybe shouldn't be all that surprising.Barnwell notes that Cook wouldn't be likely to return a first-round pick to Buffalo if the Bills decided to trade the star RB (and to be clear, they aren't planning to trade him).MORE: Brandon Aiyuk's latest decision probably ended his NFL careerIt certainly seems a bit unusual on the thinking that it'd be hard to find a player like Cook even with a first-round pick, so why wouldn't he garner that in return?But contract costs and positional value have just made RB a less key position to most teams.With that i