User blog comment:V0ldek/The biggest mistake of Season 3/@comment-3974211-20130416132020/@comment-4743916-20130416161941

Your MMR is what chooses who you play with. If you suck even if you're in a good league your MMR will drop like a rock. Leagues don't really mean anything right now because of this since the MMR is what really decides how well someone plays.