Yes, you can buy one season at a time and play the game on equal footing. However, until you've played three seasons, you have BASIC roster management. It's slow and cumbersome but it's designed to keep n00bs from screwing themselves. Personally, I wish they'd do away with it as I think it seems to make the game too time-consuming but they won't. If you like the game, don't let that stop you from playing more seasons.