AP / AD / TANK icons at champion select.
I think riot should implicate an icon summoner's can delete their desired roles as to what kind of champion build they are going to play.
For example: Shaco
can play a tank, ap or ad depending on how the summoner is wanting to play him. Having three icons to represent their choice would be an awesome add to the game.
So that way they can have a balanced team and know what each other's goal is to build.