Is Aidan Miller, the top prospect of the Phillies, really able to meet the immense expectations being placed upon him?
As spring training rapidly approaches, excitement is building around a notable Phillies prospect. Yet, surprisingly, this buzz doesn’t revolve around Andrew Painter, who, with his impressive fastball and a successful recovery from Tommy John surgery, seems poised to secure a spot in the starting rotation. Nor is it about Justin Crawford, the likely everyday centerfielder for the Phillies, who is already considered a strong contender for the Rookie of the Year title in 2026.
The spotlight is actually on Aidan Miller—a talented infielder who has only participated in eight games at the Triple-A level and currently lacks a clear pathway to the team’s 26-man roster.
Miller plays shortstop, and he does it well. Last season, he recorded a batting line of .264/.392/.433 across two minor league assignments, showcasing not only his ability to hit but also his impressive speed with 59 stolen bases and 14 home runs. Remarkably, he has risen to surpass Painter as the top-ranked prospect in the Phillies' farm system. Various sports outlets have praised him highly: The Athletic lists him as the sixth-best prospect in all of baseball, ESPN ranks him tenth, and MLB.com places him at twenty-third.
Such accolades certainly come with lofty expectations. Despite receiving an invite to spring training this year, it appears that Miller will not be starting the season at shortstop in South Philadelphia on March 26. Most indications suggest that he will continue honing his skills in Lehigh Valley. So, when can fans anticipate seeing him make his way onto the MLB roster?
Interestingly, some analysts are making bold and unconventional predictions regarding Miller's future. For instance, Eric Karabell from ESPN has claimed that "Aidan Miller (No. 10) will earn the Phillies' 3B job by Memorial Day and win NL Rookie of the Year." This prediction follows a successful season in the minors where he demonstrated power, discipline at the plate, and remarkable speed on the bases.
In contrast, the current third baseman, Alec Bohm, had a lackluster big-league performance last year, hitting only 11 home runs and maintaining a subpar 5.8% walk rate, coupled with no base-stealing prowess. Though Bohm has improved defensively, it’s argued that Miller, being an athletic shortstop, would provide a significant defensive upgrade at third base. Statistically, Bohm’s career on-base plus slugging (OPS) stands at .743, which is slightly above average, but drops to .672 in May after 551 plate appearances. If Bohm struggles again this coming May, the scenario painted by Karabell suggests that Miller could step in, hitting .280 with 20 homers and 25 stolen bases for the remainder of the season, leading the Phillies to trade Bohm to the White Sox.
However, this notion raises eyebrows. It’s quite uncommon to see significant trades transpire in May, and if Bohm is underperforming to the extent that he could be replaced, his trade value might be diminished, particularly given his expiring contract. Moreover, if Miller excels in the minors, he would require substantial time to adjust to playing third base—a position he has never occupied in minor league play.
A more plausible scenario might involve an injury to one of the infield players, thrusting Miller into action, where he could seize the opportunity much like Wally Pipp did in history. Given that Edmundo Sosa is a reliable player capable of performing well in various infield positions, it seems unlikely that Miller would receive a call-up while the Phillies are contending in 2026.
The idea of the Phillies trading away a reliable starter in May seems more feasible only if they find themselves languishing in fourth place, signaling a lack of interest in competing seriously that season. It might be prudent to begin cross-training Miller at third base, especially considering that Bohm may not be on the team in 2027, or even second base with Trea Turner locked in until 2033. But those considerations belong to next year's agenda.
This year's challenge? Consider what Steve Phillips, a prominent baseball analyst, said about Miller: "Aidan Miller is the future of the organization." He continued by drawing comparisons between Miller and Alex Bregman, highlighting Miller’s combination of speed, exceptional plate discipline, keen vision, power at the plate, athleticism, and solid defensive capabilities. Furthermore, a veteran Phillies scout once remarked that Miller was the best position player prospect they had signed since Mike Schmidt.
Are we truly placing him in the same conversation as legends like Jimmy Rollins, Ryan Howard, or Chase Utley? Or perhaps Hall of Famers like Ryne Sandberg and Scott Rolen? If these comparisons hold any weight, then why not trade Bohm right away?
Watching Miller face major league pitching during spring training in March will certainly be intriguing. Remember the thrill of witnessing top prospect Dom Brown face off against Roy Halladay in spring training back in 2010? The anticipation was palpable. Halladay went on to throw a perfect game and secured a Cy Young Award, while Brown found himself out of the majors before turning 27.
The reality is that the hype surrounding prospects often does not materialize as expected. The dream is to see Miller consistently in action at Citizens Bank Park, which seems like a reasonable hope—but that may not come to fruition until 2027. If he arrives sooner, it could indicate that the Phillies are grappling with serious issues that even Miller cannot resolve.
