McCoy-for-Alonso swap would be a rare, fascinating NFL transaction

It feels like a baseball trade. That’s how the proposed swap of Eagles running back LeSean McCoy for Bills linebacker Kiko Alonso feels. It feels distinctly un-NFL. Such player-for-player, big-contract-for-little-contract deals just don’t happen in the NFL. They’re baseball things. You know the drill: Team A acquires a veteran for the stretch run and sends…