Nava has only one useful tool at the major league level. He has a good OBP. That's a big plus and I don't minimize it. The rest of his game is substandard. The part that galls me is his baserunning judgment. For a guy who made it to the majors on hard work and little talent, I would think that his base running instincts would be a lot better. He pulls major rocks on the bases on a regular basis. He runs the bases like a blind man that doesn't understand the rules of the game. In 2013, his OBP was .385 over the full season, plus he hit 12 HRs and slugged .445. This year his OBP is down 50 pts, slugging is down 100 pts and he has only 3 HRs. 2013 was a career year, and I doubt that he can repeat those stats. At his current levels, he just doesn't do enough to warrant a roster spot next season. It is possible that he is a 4th OFer next season, but he will not take time from Cespedes or Castillo. He may pick up time from Victorino, but where does that leave Holt and Betts. Among Betts, Holt and Nava, Nava draws the short straw IMO.