Yes, the rules are actually on the first page in the first post. You can only pick a team once. So once you have selected a team then you can no longer select them throughout the game/season. You can change your pick before the games start though. It would probably be better if you read the rules in the first post. For example, you picked New England. If they beat Cincinnati that first week then you can no longer pick them for the rest of the game/season, you must pick one of the 31 remaining teams you have not selected. If New England loses then your pick is wrong and you are no longer in the game. Got it?