Suggestion
Sorry if this is the wrong place for this, but I have a suggestion... When you finish a game, give the option to play with the same team again. Often you get on a team that just simply clicks, and does well. At times friends are added and you might play with a few of the members again, but why not allow the same team to re-queue and continue to play again? And even if one or so of the members drop, allow the other 4 or three to enter a team select mode similar to team builder and re-form.