Imagine the Group has been split by lights changing to Red or a surge up a rise or a car entering a round about etc., etc.
The result is usually chaos.
Stronger riders chasing the break and weaker riders in limbo.
The correct move in this situation is to get ORGANISED:
1. The Break should slow down by 10kph
2. The Chase group need to reform the Peloton ASAP and start taking turns as they had been doing before the break
The result is that the break will be caught with little delay and the Whole Group will be Reunited with No stragglers left to fend for themselves.
Remember it is a Group Ride – NO ONE GETS LEFT BEHIND