PHOENIX -- By the straight numbers, the Arizona Diamondbacks got a two-for-one deal when they sent Mark Trumbo and Vidal Nuno to the Seattle Mariners on Wednesday.
In terms of the return, judging the trade won't be doable until the potential of prospects Gabby Guerrero and Jack Reinheimer becomes clear.
The immediate implications will depend on the impact catcher Welington Castillo and reliever Dominic Leone have in their new Arizona home. And the D-backs sure have a need for each player.
CASTILLO IS INSURANCE OR MORE
More than it made sense to open an outfield spot by trading Trumbo was the D-backs' need for another catcher after Tuffy Gosewisch went down with a torn ACL last week.
"This is a good place to be, new place to be," Castillo said Wednesday. "Always, I like to work hard, I like to win games, and this is a good group of guys here that like to work hard, too."
The 28-year-old, who played for the Cubs and Mariners this year, brings experience behind the plate as the primary catcher with the Cubs in 2013 and 2014 ... until the team acquired former Diamondback Migel Montero last season.
Behind Montero, Castillo's role diminished in 2015 and his batting success -- he slashed .237/.296/.389 in 2014 -- declined because of it. While he expected to be traded after the Cubs acquired Montero, he spent a good deal of time learning from the former Diamondback until the team dealt him for pitcher Yoervis Medina two weeks ago.
Castillo appeared in just six games with the Mariners, recording four hits in 28 plate appearances.
Castillo, who grew up with Arizona pitcher Rubby De La Rosa in the Dominican Republic, will catch Jeremy Hellickson on Friday against the New York Mets, according to Arizona manager Chip Hale.
It's unclear how he and Jarrod Saltalamacchia will split duties, but both start with essentially the same experience with the Arizona pitching staff -- not much.
"We'll see how each guy works for our pitchers," Hale said.
"We'll see how the matchups are. Salty being a switch-hitter, his right-hand swing has been really good for us. Is it three out of five, is it every other day? I don't know right now. I think they'll play their way into it. It's not easy now having two catchers that don't know a whole lot about our staff."
Young pitchers that appear destined for the bullpen lose their value as prospects, but the D-backs desperately need depth, especially with a long-reliever, Nuno, off to start for Seattle.
The right-hander appeared in 57 games in 2014 with a 2.17 ERA but has struggled with a 6.35 ERA in limited time (10 games and 11 1/3 innings) this year. He hasn't done well against righties in 2015, but it was the opposite last season.
"Obviously this year I started off a little slow -- numbers don't lie, it's easy to see that," Leone said. "Coming into spring, I wasn't as sharp as where I wanted to be. I think I've just been battling that throughout the season. It's just been tough going from Tacoma Triple-A, back to the big leagues, back down."
Hale doesn't have an ideal role for the young pitcher -- after all, he still hasn't committed to Brad Zielger as a closer or Addison Reed's return to that role -- but Leone said he has no preference when it comes to his place on his new team.
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