You could but you'd be fighting lobby balancing all the way. SBMM is there but not really when lobby balancing screws you. I played the other day and I was at around 3400 or so against 3500-4800 glory players, wanna know what my team were at? [spoiler]1800 and 0[/spoiler] As it is, competitive often tells one player to carry their team if they want to win. So if I actually win under circumstances like these, I'm dragging other players up when they don't deserve to climb if they're not helping or playing badly, but if I lose it's because I wasn't able to play in what's effectively a 1v3 game where my lives are being thrown away by my team mates. Sure, I have bad games I don't deserve to climb in either and in that case, I usually don't, however I'm also pretty much always playing people at 3k or higher even when starting at 0. In that case, I'm potentially a detriment to my team unless I play well. Either way, lobby balancing is screwed up and everyone knows it.