If I'm not mistaken, experience gained by level 11 characters is experience not gained by characters who could benefit from it, and this forces players to choose between speedy leveling and their preferred class combinations. I think this game can be improved by making it possible for characters to reach levels above 11, and by having level >11 team members automatically transfer an increasing portion of experience gained to another level <maximum team member at the end of every successful mission.
Your opinions?