According to major league rules, the 26-man roster must be split evenly between pitchers and hitters. Of course, although this rule has technically been in place since after the 2019 season, you’re forgiven if you had forgotten it, since it was suspended in 2020 and 2021 because of the pandemic and has yet to come into play in 2022 because of the special roster rules for the month of April because of the shortened spring training.
Between the 28-man roster and the suspension of the cap on pitchers, the Yankees have been able to keep just a three-man bench and instead carry 16 pitchers on the roster for the month of April.