The champion Chicago Cubs filled their only real need, getting All-Star reliever Wade Davis. As for the Washington Nationals, well, they opened quite a debate Wednesday by trading not one, not two, but three talented, young pitchers for outfielder Adam Eaton. The person spoke on condition of anonymity because the contract was still pending a physical - it would be the richest deal ever for a reliever, shattering the $62 million, five-year pact Mark Melancon got from San Francisco just a couple days ago.