There will be a warning at the top of your page telling you that your team is illegal and why. You can check out your upcoming game by going to 'Scoreboard' then click 'Preview'. That's a good way to see how you rank against your weekly opponent. Or, go to League Home and click the number next to your upcoming game.
Most of the teams seem more or less balanced. You gotta figure with 14 teams, we're not going to have teams full of top players. Unless you're Wamba, that is. :noid: