The Boston Red Sox went from surefire trade deadline sellers to one of the most actively buying teams ahead of the Aug. 3 trade deadline, making five deals to reinforce their lineup and expending many of their young trade chips in the process. While Chief Baseball Officer Craig Breslow finally showed he can handle the deadline, did he manage his assets, particularly shortstop Marcelo Mayer and starter Connelly Early, as effectively as possible? 

Entering the deadline, the Red Sox not only had the ninth-ranked farm system in baseball, per Baseball America, but also a dearth of young, controllable major league players to deal from. Ultimately, Mayer and Early were both shipped out in separate deals to San Francisco and Washington, respectively. However, could Breslow have maximized the return on both players if he had pulled the trigger on a rumored offseason deal? 

Throughout the offseason, the Red Sox were linked to nearly every big-name bat on both the free agent and trade markets, including Arizona Diamondbacks’ All-Star second baseman Ketel Marte. 

Arizona, understandably, placed an incredibly high price tag on its star infielder before taking him off the market ahead of Spring Training. The reported ask they had of Boston? One of the starters, Payton Tolle, Early, and Mayer. A price that Breslow was unwilling to pay. 

Now, fast forward to August, and neither Mayer nor Early are with the organization, being dealt for now-injured infielder Curtis Mead, hard-throwing reliever Erik Miller, and prospect Carlos Gutierrez. 

The 32-year-old Marte is having a down year by his standards in 2026, hitting just .249/.310/.448/.758 with 21 home runs in 115 games, while accruing only 1.7 bWAR. Along with being one of the best second basemen in the sport, Marte is under contract through the 2030 season for an incredibly affordable $17.5 million annually. 

The 25-yer-old Mead, acquired in the Early deal, was amidst a breakout season in Washington, hitting .256/.351/.505/.856 with 17 home runs and 48 RBI in 86 games, posting a 1.9 bWAR before landing in Boston on July 25. Unfortunately, Mead was hit by a pitch in his second at-bat in a Boston uniform, breaking his wrist and landing him on the injured list for six to eight weeks. However, he carried with him five years of team control, making him a long-term piece for the Red Sox. 

Prior to being traded to the Red Sox, Miller posted a 2.76 ERA in 32.2 innings coming out of the struggling Giants bullpen, holding batters to a .198 batting average while striking out 31.7 percent of the batters he faced. In three appearances since the trade, the 28-year-old lefty has performed well, allowing one unearned run on three hits while striking out six and walking only one. Like Mead, Miller is still in his pre-arbitration years and will not be a free agent until 2030. 

Finally, there is Gutierrez, who entered the Red Sox system as SoxProspect's 20th-ranked prospect. According to SoxProspects, the 22-year-old outfielder is a hit-first outfielder who profiles best as a left fielder. While an intriguing prospect in a system that has done well getting players with a similar build to generate more in-game power, his impact is likely minimal, as he is still in High-A and likely years away from the big leagues. 

There were, of course, developments over the course of the season that made both Early and Mayer more expendable, including the emergence of Jake Bennett as a major league starter and Franklin Arias’ breakout into one of the best prospects in the sport. Mayer also came with his own concerns and struggles during his brief time at the major league level, including an injury-prone label and questions about his makeup, which led the Red Sox front office to question whether he would thrive in a market like Boston.  

However, despite Marte’s struggles, it is fair to ask if the Red Sox offense, which struggled immensely for the first three months of the season, would have benefited from having the three-time All-Star in it. 

Ultimately, it is still far too early to tell whether Breslow correctly held off on trading two of his better trade chips for Marte's services, instead choosing to deal them in separate trades for younger, more controllable players. However, he undoubtedly misevaluated Mayer, who entered the season looking like the shortstop of the future, before being sold at his lowest value since being selected fourth overall in the 2021 MLB Draft. Breslow's ability to self-scout players already in the system is worth keeping a close eye on moving forward.