@Riot, Please define what "Team Builder" means.

Why is it that players have to choose their champions before finding a team? The mode is called "Team Builder," not "I have a build, let's find a team".

I can understand getting first pick on a specific champion or making sure there are no crossovers. Maybe even lower trolling possibilities. But come on. I want to play a specific "role" more so than the actual champion. And often times you end up with a really badly composed team that you know will lose. But you've been siting in queue for 5+ minutes so you're like, "screw it, i'll take my chances".

Yesterday I had a game full of assassins, even the support. Naturally we lost because we couldn't survive a team fight long enough to push the towers.

Now my ideal situation would be this:

• pick a role and get in queue.
• once all 5 players are found we could discuss a simple strategy. (of course this is just normal so no one would really care too much anyway)
• then we pick champions and find a game.

that way you don't get the all assassin team that only cares about getting kills.

I know there may be problems with a system like this. So maybe allow just one champion switch? I just don't want to wait 10 minutes to secure Top Lane and find out the team is bound to lose anyways.

TL:DR - allow one(or more) champion switches after a team is found. Or change the name from "Team Builder" to "I have a build, find me a team".