Also, might be worth kicking the tires on Rios or Choo. Rios is on the last year of his contract, with a somewhat pricey option -- he fields RF with good range, produces RBIs and the Rangers suck right now.
The Choo ankle injury is a concern, but he has been producing. The Rangers are spending a lot for him despite a season that seems doomed to failure. There will be very few significant outfielders hitting the FA market, so no big bats in that area any time soon.