How about making brackets of 2v2 3v3 ,and 4v4 pre-made sans the pve style party type restriction? This would inject a dynamic style into play that simply does not exist at the moment. It would also limit the salt received in the feedback as poorly formed teams affecting your ranking is only your fault as a player in this scenario. Imagine the cool things you could see in team composition if you were allowed to take whatever class groupings you wanted.