I do not see the market for Castro. Maldonado was a free agent and couldn’t get a contract until into spring. They bring a very similar skill set. It is going to take a team that is losing a catcher to Tommy John. It is going to need to be a contender without a good back up option. Every team just passed up on Sandy Leon. Castro is a better hitter but not so much better that he will bring a significant return. Keep all three. The return for Castro will be minimal. Imagine trading Castro and then Garver has concussion trouble. I don’t see anyone ready to step in and catch twice a week in AAA. Assuming everyone is healthy there is enough versatility among the roster to survive a three man bench with Garver, Astudillo and either Cave or Adrianza. They also aren’t stuck with a rule 5 guy at the end of the bullpen. Harper and Hildenberger have options and can be shuttled with Moya, Vazquez, Duffy or Romero to assist an overworked pen keeping the need for 13 temporary.