Can you ask to save and exit if your teammate is really bad?

I don't mean when one guy 'titatics' i.e. makes a small error which then snowballs into a loss for the whole team. I mean when one player is significantly below what his ELO suggests and is just bad for no reason.

This is more for voobly as on hd it just comes with the territory that it can happen.

But a 1650 voobly player should be able to do certain things.