Only thing i say is if someone only wants to buy one team they won;t be able to participate. How about if you only buy one team it's random so you get a shot at the falcons and raiders and ravens, but if you buy more than one team you get to pick one and get the second random, if you buy three pick one and two random, If you buy four, pick two and get two random. Not sure if it would work well, but think it might