Make Team Builder more flexible
Just a thought on increasing the viability of Team Builder. Why not allow the champion select option to happen after joining a team? You would select your lane and position as usual, but would choose your champ after joining a team. Or at least be able to change champs after joining a team. The nice thing here is that you would be able to create team comps that would be able to synergize better. For instance, if you find yourself with an AD top, jung, and mid, you would be able to change your comp so that you had more mixed damage. It would also allow for better team construction on a whole. For instance, if someone came in with support shaco, they could be given the option to change, or defend their choice, instead of being insta kicked.
Just a thought.