To revisit an old thread in the show you get 6 or 7 draft picks a year. In order to have a functioning league in a few years each team needs about half of their draft picks to progress reliably and predictably into MLB players.
To compare this to MLB where each team gets 30 draft picks plus international signings doesn't work. IRL if 80% of prospects wash out there are still plenty of players to stock 30 teams with 25 man rosters. In the show if that happens you get pitchers who can't pitch and catchers who can't catch.
I argued this a couple years ago when people wanted more chaos in progression. Chaos won.