Perceived to be one of the toolsiest, and most raw, prospects in the 2017 Draft class, as a high schooler from Kentucky, Adell has blown past any and all expectations in terms of how quickly he’d figure things out at the pro level. A two-time Futures Game player, Adell reached Triple-A in 2019 at age 20 despite missing nearly two months at the start of the season because of hamstring and ankle injuries suffered during Spring Training. He made up for lost time as one of the best prospects in the Arizona Fall League.
When Adell was entering pro ball, the biggest worry was that he wouldn’t make enough contact to perform at the highest levels. He still swings and misses quite a bit, carrying a 25.3 percent strikeout rate in his pro career into the 2020 season. He could draw more walks, and it was encouraging to see him walk in nearly 10 percent of his AFL plate appearances, but his elite bat speed and ability to read pitches more than offsets that deficiency. He can drive the ball to all fields and his raw power will almost certainly show up more consistently as he matures.
Big and physical, Adell’s plus speed makes him a five-tool threat, though he didn’t run as much in 2019 following his injuries. He can handle playing center field, but might best fit into an outfield corner, especially given Mike Trout’s presence in Los Angeles. His plus arm and his potential to be a run producer profile well in a corner, and he’s not too far from being ready to join Trout in that big league outfield.
Scouting grades: Hit: 55 | Power: 60 | Run: 65 | Arm: 60 | Field: 60 | Overall: 65
Remember when there was concern about Adell's ability to hit at the pro level coming out of the Kentucky high school ranks in 2017, even though he was the state's Gatorade Player of the Year and led all prepsters with 25 home runs? Yeah, no one else does, either, not after Adell raked across two levels of Rookie ball during his summer debut then hit his way all the way to Double-A at age 19 in 2018, fitting in a Futures Game appearance for good measure. Hamstring and ankle injuries shelved him in Spring Training, and he was sidelined for an extended period of time.
While the swing-and-miss tendencies that concerned some scouts still remain with Adell, his bat speed and ability to read pitches and make adjustments more than outstrip the worry. He's shown the ability to drive the ball to all fields and his over-the-fence pop started showing up consistently during his first full season. Yes, Adell can still refine his overall approach to see more pitches and draw more walks, but the strides he has quickly made in pitch recognition bode well for his future at the plate. Adell's speed works on both sides of the ball, giving him the ability to steal some bases and enough range to play center field, especially as he improves his reads and routes.
Should he slow down a touch as he physically matures, Adell has shown the ability to play the outfield corners. A shoulder issue that kept him from playing the outfield in 2017 is a distant memory and the plus arm that allowed him to crank out plus fastballs from the mound in high school has returned. The five-tool outfielder is way ahead of schedule and could be patrolling the Angels outfield alongside Mike Trout sooner rather than later.
Scouting grades: Hit: 50 | Power: 60 | Run: 65 | Arm: 60 | Field: 60 | Overall: 60
From a raw tools perspective, there may not have been anyone more enticing in the 2017 Draft class than Adell. The Kentucky high school star was his state's Gatorade Player of the Year and led all high school hitters with 25 home runs. While there was some concern about his ability to hit, the Angels liked the upside enough to take him No. 10 overall and sign him for full pick value. He then went out and showed off all of those tools across two levels of rookie ball during his pro debut, and kept on doing it across two levels of A ball in his first full season, earning a trip to the Futures Game in the process.
While no one questions Adell's raw power and bat speed from the right side, some were concerned with his ability to make enough contact to tap into it due to some swing-and-miss tendencies that showed up against top competition on the summer showcase circuit. There were some strikeouts during his debut, but he impressed the Angels with his ability to make adjustments and drive the ball to all fields. A tremendous athlete with plus speed, Adell has the chance to continue to be a basestealing threat long term. It also helps give him plenty of range to patrol center, though he didn't play the outfield last summer because of a minor shoulder issue. His plus arm, which fired upper-90s fastballs from the mound in high school, would also work in right.
Even with the exciting debut, patience will be key in the dynamic outfielder's development. If it all continues to click, he could develop into the kind of All-Star performer teams hope to get with their first-round selections.
Scouting grades: Hit: 45 | Power: 55 | Run: 65 | Arm: 60 | Field: 60 | Overall: 50
There may not have been a 2017 Draft prospect with better all-around tools than Adell, who drew comparisons to former No. 2 overall Draft picks like Byron Buxton and Melvin Upton Jr. based on his athletic ability. Adell didn't go that high, but he did land at the end of the Top 10 to the Angels, who reversed course from taking a pure college performer in the first round in 2016 to sign Adell for full pick value.
The Kentucky high school standout led all high school players in the country with 25 homers and was named his state's Gatorade player of the year, but there were still concerns about his ability to hit enough to tap into that power at the next level. The pop is legit, with outstanding bat speed from the right side of the plate translating to plus raw power. With that, however, has come a tendency to swing and miss, and there is work to be done on his approach at the plate. He's a plus athlete with a big league body already, with incredible speed that should work on both sides of the ball. He's a very good defensive center fielder, with a strong arm that fired fastballs up to 97 mph at times off the mound.
The Angels will have to be patient with Adell as he learns to make adjustments at the pro level. If it all clicks, he has All-Star potential.