The best way to play..
Unless you're in a premade, assume EVERYONE on your team is pure trash. that way, you won't be let down when they end up feeding 0-6. Hell, you may even be surprised when your assumed-trashuo hard carries the game.
It's almost always best to assume people are bad.. so you don't be let down psychologically. albeit some people will complain about the wasted time.
If you go into every game expecting to lose, hell, it might just make your wins that much sweeter.