Yeah its open, basically run the league as a Normal League. FA period is replaced with a Scholarship Offer feature. Playoffs same, though will use PBP during it. The draft class for the Main League comes out of the NCAA, but is replaced with a High School draft class. Players who are used in the draft file usually leave the NCAA for the Main League, but Im likely to allow them to stay for at least till their in their senior year. The league is a work in progress, lot more prospects etc will be put into this League.