Heh, I suspect Santana is more there out of fear of losing a quality player to waivers than expected performance (at least in April), pretty much the same as Arcia. And I think that's the correct course of action for early 2016. Give these guys two months to figure out who stays on the roster and who gets the boot. It would be unnecessarily risky (in either direction) to make that decision today. Best case scenario, Santana and Arcia thrive, Nunez gets the boot. Most likely scenario, Arcia is okay, Nunez is whatever, and Santana is "please god, I've seen enough already".