We all agree that sometimes (maybe most of the time if we played dota 2 too much) we get cancerous players, who do not want to listen, noobies that can't really play that hero (solo mmr) . I always get the same problems, so i take charge of filling up the missing role in team, try to be nice even it is hard to do with shitty teammates, occasionally tell them what to do (do not go into dark map, soloing without seeing map, rambo'ing every time he meet 5 enemies at once, play safe etc), occasionally because if you tell them too much, they will started to get irritated with you.

If it is still not working, just pray to god you win.