- It's pretty much in line with roster sizes for the Negro League teams, the 19th Century teams, and even teams in the deadball era and during the Depression.
- It limits the opportunities for oddball platoons — Hank Greenberg and Johnny Mize, for example. There'll still be some of that, but with just four reserve players, it's tough to run multiple platoons.
- A number of teams couldn't use 10-man pitching staffs anyway.
Along the same lines, some pitchers are going to be more valuable than some superior pitchers because they are coded for relief work. This is particularly true among the Kennedys and the Garfields player lists, each of which contain a high percentage of starter-only pitchers.