Originally Posted by queerpunk

It's against the rules: look for the rule that covers "collusion." It's written so broadly that one could argue that working in a breakaway with somebody else is against the rules.

Teamwork is banned so that one teammate can't drop back from the field to help another teammate lap up.

It's harder to enforce things like decisions not to chase a teammate. Even leadouts are hard to enforce. after some egregious stuff at a high level event one comm told me all they really looked for was deliberately slowing down in the lane to block while a teammate is off the front.