Teams that would make the best offseason trade partners with the Pittsburgh Pirates

With the World Series now over, MLB teams can move on and focus on the upcoming offseason. The Pittsburgh Pirates need to be active this fall and winter. There’s too much talent on the 40-man roster not to capitalize and make some impact moves this offseason.

The Pirates should have plenty of opportunities to add to and streamline the roster, aiming at winning more than 76 games, the unfortunate total they've reached in each of the last two seasons. They have a ton of pitching talent, but which teams would make the best potential trade partners for the Bucs?

3 teams who Pirates can trade pitching talent to this offseason

Boston Red Sox

One team that may be on the lookout for starting pitching is the Boston Red Sox. The Sox are coming off an 81-81 season. They, like the Pirates, had a dismal second half of the season. The Red Sox only went 37-41 after the start of July. Their pitching definitely let them down as part of those second-half struggles.

Red Sox arms owned a 4.49 ERA, 4.55 FIP, and 1.33 WHIP from July 1 onward. They have a decent core of pitching, as they had five starters make double-digit starts, and only one was older than 30. Granted, none were younger than 25, either.

Still, they also do not have much in the way of pitching depth in the upper levels of the minor leagues, even after acquiring Quinn Priester. Developing pitching is Craig Breslow's specialty, and it's time for him to really get to work.

Both MLB Pipeline and Baseball America only list two pitching prospects among the Red Sox’s top ten prospects and none in their top five. Their top eight prospects on Pipeline are position players, and their first seven on BA are also position players. Another thing many note is that they have an overabundance of left-handed batters.

Another area in which the Red Sox could use some depth is behind the plate. Connor Wong is coming off a solid season, but one that only looks nice on the surface, as he had a poor second half and some worrying underlying numbers. Former Pirates first-round pick Reese McGuire served as their backup catcher this season, and he is now a free agent. Deadline acquisition Danny Jansen is also now a bat for hire.

The Red Sox, meanwhile, have some position players that they could trade. Triston Casas would make a great fit for the Pirates, assuming the Red Sox would be willing to trade the 2023 Rookie of the Year candidate. Masataka Yoshida would also be a good option at DH/LF, though his contract is hefty. They’d likely be the first names the Red Sox would consider moving, making room for top prospect Roman Anthony in the lineup.

Arizona Diamondbacks

The Arizona Diamondbacks failed to make the postseason after getting to baseball’s biggest stage in 2023. They played in a very tough division, winning 89 games, falling short of the Wild Card, and then relying on a doubleheader between the NY Mets and Atlanta Braves to decide their fate. That was after they got off to an ice cold start to the year.

By July, they had figured things out. On the surface, their pitching struggled with a 4.59 ERA and 1.34 WHIP in the second half, but they were one of the most unluckiest staffs in all of baseball. The metrics xFIP, SIERA, and FIP all had them below 4.00. Still, there were certainly bumps in the road, and the D-Backs’ long-term rotation has some question marks.

Both Jordan Montgomery and Eduardo Rodriguez fell well short of expectations, the former posting an ERA over 6.00 and the latter posting an ERA over 5.00. Merrill Kelly was injured but decent when healthy, and Zac Gallen turned in another quality campaign, but both are also free agents at the end of 2025. Montgomery, of course, picked up his hefty '25 option this week.

The D-Backs have limited pitching talent to replace such losses right now. Only Yilber Diaz and Yu-Min Lin are among their top 10 prospects on BA and Pipeline. Both are coming off good 2024 campaigns, but that’s about all the D-Backs have in the way of near-MLB-ready pitching talent.

But the Snakes could look to trade some of their outfield talent. Corbin Carroll, Lourdes Gurriel Jr., and Jake McCarthy are each under control for at least three more seasons, if not more. Three of their top 10 prospects on Pipeline and BA are outfield prospects. Plus, they have two more young outfielders, Alek Thomas, and Jorge Barrosa, on their 40-man roster.