The Washington Nationals rode their pitching to the best record in the majors last season. Davey Johnson's young squad posted the second-best team ERA in baseball and had a starting five that rivaled some of the best in the game.
But with the likely departure of starter Edwin Jackson and the continuing development of the staff's other young arms, a new face would be a huge addition. The front end of the rotation is stellar—Stephen Strasburg, Gio Gonzalez, and Jordan Zimmermann all posted ERA's under 3.20—but the back end is a bit shaky. Young fireballer Ross Detwiler will continue to grow, but there is still a hole in the lineup.
Luckily for the Nationals, D.C. has become a baseball town and a place where free agents will have plenty of incentive to play.
The Nats have established themselves as a team that is a player or two away from being a perennial contender, so a big arm in free agency could be what puts them over the top.