I agree with the comment of - 'the curveball thrown at us - & how it points out the need for us to slow down at the beginning'.
If there is a 'team leader' then their job might be to state which key we play in, the order of breaks (not everyone wants to do them or can), and perhaps get the song started. Once started, only the players should be responsible for passing on the break via eye contact.
Most songs require parts 1 & 2 to be played twice - and only the current player knows best - when they are finishing - so should take the initiative for eye contact. I don't see anything wrong with organizing who takes the breaks & in what order - before the song is started - although FM may not like this! After all - we are still works-in-progress!