Perez got dumped more because Arcia and not himself in my opinion (though he obviously didn’t play well). They obviously aren’t happy with Arcia, especially his defense. With that being said they wanted someone else to get time at SS, but Perez isn’t great defensively there. Saladino is a better defensive utility player and I don’t think the offensive difference will be much. I guess what I am trying to say is Perez wouldn’t have been DFA’d if Arcia was playing well, especially defensively. Dubon isn’t up because they view him as a potential starter, not a utility player. Makes more sense to keep him down getting consistent playing time. They could trade him, but that isn’t why they are keeping him down.