Just hours after Alex Rodriguez walked off the field following his final game (in pinstripes, at least), the Yankees made the following string of transactions.

And just hours after making those transactions, both Aaron Judge and Tyler Austin had already homered in the big leagues. Out with the old, in with the new.

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Aaron Judge (Profile)

Judge is an impressive physical specimen. His chiseled 6-foot-7 frame generates loads of power, yet he’s still an average-ish runner. As a result, he’s been a mainstay on prospect lists, including a #42 ranking on Baseball America’s mid-season list. Those impressive tools have manifested themselves in strong Triple-A numbers for Judge this season: .270/.366/.489 with 19 homers and 5 steals.

Still, despite that strong performance, my KATOH projection system isn’t completely sold on Judge. My system projects him for 4.9 WAR over his first six seasons by the traditional method, which makes him a back-end top 100 prospect. KATOH+, which integrates Baseball America’s rankings, projects him for 5.6 WAR, which puts him right around the #50 range.

To help you visualize what his KATOH projection entails, here is a probability density function showing KATOH+’s projected distribution of outcomes for Judge’s first six seasons in the major leagues.

To put some faces to Judge’s statistical profile, let’s generate some statistical comps for the giant outfielder. I calculated a weighted Mahalanobis distance between Judge’s Triple-A performance this year and every Double-A season since 1991 in which a corner outfielder recorded at least 400 batters faced. In the table below, you’ll find the 10 most similar seasons, ranked from most to least similar. The WAR totals refer to each player’s first six seasons in the major leagues. A lower “Mah Dist” reading indicates a closer comp.

Please note that the Mahalanobis analysis is separate from KATOH. KATOH relies on macro-level trends, rather than comps. The fates of a few statistically similar players shouldn’t be used to draw sweeping conclusions about a prospect’s future. For this reason, I recommend using a player’s KATOH forecast to assess his future potential. The comps give us some interesting names that sometimes feel spot-on, but they’re mostly just there for fun.

The biggest red flag in Judge’s statistical profile is his strikeout rate. He’s struck out in an unsettling 24% of his plate appearances this season, after whiffing in 26% last year. Furthermore, while Judge has tremendous power, it hasn’t always shown up in games. He’s enjoyed a nice little power spike this season, but even so, his .212 ISO falls short of elite. Prior to this season, he averaged a tick under 17 homers per 500 plate appearances, with half of that coming in A-Ball.

KATOH also penalizes him a bit for his age. At 24, Judge isn’t terribly old for a prospect who was drafted out of college, but most star hitters establish themselves in the big leagues at a younger age. Consider Giancarlo Stanton, who some have unfairly used as a body comp for Judge. By the end of his age-24 season, Stanton already had 154 homers and 21.1 WAR on his big-league ledger.

Of course, none of this is to say that Judge isn’t a good prospect. A guy who has succeeded in Triple-A and has cracked top-50 lists is most definitely a good prospect. But regardless of how far he can hit baseballs, there are a few warning signs in his profile that we shouldn’t ignore.

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Tyler Austin (Profile)

The Yankees originally drafted Austin in the 12th round out of high school back in 2010, and he snuck onto a few prospect lists in 2013 after putting up crooked numbers in the low minors. His prospect stock quickly tumbled, though, as he struggled through injury-shortened seasons in both 2013 and 2014 as he battled a lingering wrist injury.

Austin hit rock bottom last year, when he hit a weak .235/.309/.311 with a 27% strikeout rate at Triple-A around a hip injury. Heading into 2016, Austin was a 24-year-old corner outfielder who hadn’t hit at all in three years. He looked like a non-prospect.

Austin opened the year by hitting an acceptable .260/.367/.395 at Double-A, but has absolutely raked since the Yankees bumped him up to Triple-A in early June. He slashed a Bonds-ian .323/.415/.637 in 234 plate appearances, while also kicking in five steals. His wRC+ at Triple-A was 202. 202!

KATOH gives Austin credit for his ridiculous 2016 numbers, but remains relatively conservative on him. My system projects him for 3.1 WAR over his first six seasons by the traditional method, which makes him a borderline top-100 prospect. KATOH+, which integrates Baseball America’s rankings, projects him for just 1.8 WAR.

Here are his comps.

As good as Austin’s been this year, he was all sorts of terrible last year, and his atrocious 2015 numbers drag down his projection. And even following his offensive breakout, Austin remains a defensive liability. He’s also about to turn 25, which makes him pretty old for a prospect — and especially for a prospect who was drafted out of high school.

Austin’s past injuries might help explain his terrible 2015 performance, so perhaps KATOH isn’t giving him a completely fair shake. But even so, all Austin really has going for him is 10 weeks of crazy-good hitting. Maybe the Austin who posted a 202 wRC+ in Triple-A is the real Austin, but more likely than not, the real Austin looks more like a bench player than anything.