Yes, of course I was speaking only for bots, even if personally I would put a limit (maybe it already exists, but maybe it's so high that it doesn't bother anyone ..)
In any case, in the rosters there are always and in any case a maximum of 30 players; you can put them in order in various ways (name, surname, age .. etc ..), but always 30 .. making a very numerous roster even difficult to manage ..
Returning to us I would put a limit for the bots and even a little more than those necessary for the games .. or as I said before, put a "John Doe" with fixed characteristics (which do not snap) and whose shape does not need to update every week .. saving energy to the game ..
That is, only in the fifth Italian series, there would be like 350,000 useless players of bot teams who every week need updates that nobody cares about ..