ANA here is my tips ………you can divide teams into 4 groups A, B, C, D……3 teams in each group……if there is less then 12 teams……….. (there can be one group with 2 teams…you can put last year winner in this group...according to ur bye rules) …...have them play league game ………winner of each group makes to quarterfinal …….and you can have your Knock out game ….