So someone at Football Manager turns on his gaming platform, loads two teams, then selects number of gamers as zero. Computer plays against itself! Reminds me of some plot to a movie from the 80's. Game on professor Falcon!
That's actually how FIFA 20 would work. There are no "gamers" per se in Football Manager. It is a management simulation. The human element is limited to developing tactics, setting team, setting training, player interaction, transfers, team talks, making substitutions. The rest is computer simulated. These days with 3D representation of the simulation. Originally was text only, then 2D (you can actually play classic mode with 2D or text if you wish). Basically in this situation, you'd set a human manager for the Dynamo and for Seattle, you'd set their tactics and starting lineup to how they would likely play in real life and then you step back and let the AI handle the rest.
Hell man ... the average 7yo streams their Fortnite games .... just sayin. (I hope this doesn't need to be said but I am not serious about any of this .... )