There are at least six tendencies on the socialist left. There are the social democrats, three kinds of Leninists, council communists, and anarchists. But in real life practical circumstances involving workers how do these groups act towards each other? The worst possibility is to compete for power, repress or drive out the other groups. The other extreme is to dissolve all differences and operate as “one big tent”. This article is about strategies and tactics that move beyond these extremes.