For comparison, Aaron Judge’s first taste of MLB pitching in 84 ABs:
(AGE-24) .179avg, 4HR, 10RBIs, 42Ks, .608 OPS
Adell with 117 ABs:
(AGE-21) .154avg, 3HR, 7RBIs, 52Ks, .464 OPS
Adell definitely with poorer numbers but it’s still just a taste and he’s 3 years younger during his first taste than Judge. Judge went on to hit 52 HRs the following season (2017).