Ok so this isn't a rage post more something i think will make the game slightly better for everyone, please read on:
I noticed alot even at level 30 alot of people don't know or don't care about balancing a team (wether it be 2ap nuke(1ap nuke-1ap support) and 2 ad with a tank) instead going 4ad and a tank or 4 ap and a tank or no tank at all. i'm not saying this should be the way , i'm not saying it cant work though what i'm saying is alot of people like a balanced team so it is harder for the opposing team to stack up against their damage.
I think it would be a great idea if this would be introduced to new starting players in another tutorial along with the other 2 (i thought was a great idea by the way riot) and/or make a seperate game mode or change the other game modes that would force roles to be taken before you que then get matched with people like normal via hidden elo and true elo etc but with a change that it would que you with people that would also play roles you wouldn't want to play at the time.
When it gets to que walla! you pick you ad, ap, tank, support or jungler w/e that you pick and everyones happy.
I had thought of que times changing and i'm sure you'd agree it would probably take slightly longer to que, i'm hoping this would counter-act itself by people trying out the less taken role -tank,jungler etc so that they would que quicker.
I hope this gets a read as i put a bit of thought into it, i would encourage everyone riot and players alike for their thoughts on this (minus the trolls of course),
yours sincerely AusBloodSpilla