Our recent research into team behavior [...] reveals an interesting paradox: Although teams that are large, virtual, diverse, and composed of highly educated specialists are increasingly crucial with challenging projects, those same four characteristics make it hard for teams to get anything done. To put it another way, the qualities required for success are the same qualities that undermine success. Members of complex teams are less likely—absent other influences—to share knowledge freely, to learn from one another, to shift workloads flexibly to break up unexpected bottlenecks, to help one another complete jobs and meet deadlines, and to share resources—in other words, to collaborate. They are less likely to say that they “sink or swim” together, want one another to succeed, or view their goals as compatible.

Eight Ways to Build Collaborative Teams by Lynda Gratton and Tamara J. Erickson

This seems applicable as the LessWrong community is "large, virtual, diverse, and composed of highly educated specialists" and the community wants to solve challenging projects.