Baker, 32, hit .279/.360/.545 (143 OPS+) in 74 games for the Rangers last season, but the right-handed hitter had a massive platoon split: 187 OPS+ against lefties but only a 56 OPS+ against righties. Baker has played every position other than shortstop, center field, pitcher and catcher in his nine-year career.
The Nationals would use Baker as a right-handed bat off the bench while the Marlins could give him regular playing time at first or third base. He's a limited player who can be very productive is used properly.
Baker missed more than a month last year after spraining his thumb while high-fiving a teammate. True story.