To people who think they're "stuck" at a rank because of teammates: If you are stuck in a rank, you are probably that rank (or very slightly above it). I had no trouble carrying myself up to a high rank because i top fragged by far for literally like my first 15 games. You get screwed by teammates sometimes, but so do your opponents; not every game is winnable, but its about making sure you never lose the ones that are. If you lose a game 14-16, you probably could have done more, even if your team was bad.
