Under Options and Lineups and Usage (after you have your league selected), there is an option to "Use 'Super HAL' Bullpen."
However, there is no explanation what this does or if it's something you can adjust. Worse, the in-game Help file doesn't work with Windows 10. I haven't used my Windows version of SOM much, partly because it's so un-user-friendly. (The Quick Start Guide is 20 pages long!) Perhaps if you sign up for their regular online forum, which covers the cards & dice and Windows versions of the game, you'll find someone who can answer your question.
https://www.strat-o-matic.com/links/str ... fan-forum/You'll need to set up a separate login to use this forum.