They are definitely making changes without our knowledge. I have 6 teams and have run different styles under 3.0. I have been totally shut down by Sim coached teams w no human recruited players while playing the #1 ranked team to a 4ot loss putting up huge pts and yardage. There is a lot not right w this engine. I'd like to say that some have actually figured out the engine but I'm seeing coaches going 15-2 w one team while winning no more than 2 games w their other teams all under 3.0!