A teambuilder change to reduce queue times drastically
The thing that team builder could use, aside from the option to change champs once you're on a team for better synergy, is the option to select 'Fill" as your role. teams quite often need to wait quite a while in order to get a jungler, support or ADC, adding a fill option could cut down on this waiting time. There would need to be incentives for picking the fill role like an IP boost for the game and maybe an icon.