I am currently in a very fortunate position to have 4 newly qualified level 2 coaches at the club. All 4 of them are technically very proficient and we run the class in a sort of “round robin”. We have a children’s class with about 30 kids in, we split the session so they all warm up together (normally some sort of game followed by gymnastics, ukemi and ebi).
Then we split them into groups and we have 2-4 “stations” with each group doing 10 mins at each station (for example one on kumi kata, one on a throw and one on a hold down/turnover).
This works great, the kids don’t get bored, coaches only have 10 minutes so if there is an annoying kid or it isn’t going well it’s not long. Also we normally have two stations running at once so each coach gets a rest session and we have a “policemen” who can go from group to group and help with coaching points or discipline.
We then move on to randori (nage waza and ne waza) before finishing with some sort of game and a cool down.
The cool down is normally taken by one of the sports leaders and this gives me the chance to quickly de-brief the coaches on their coaching.
Here are some pictures…
Ne waza with Mike, you can see me on the right watching both sessions
In this one Glenn is taking the nage waza and I have come across as the “policeman”
In this one you can see the nage waza session and the ne waza in the background
Glenn with the little ones…
judobob 
Hi bob, i like the stations idea, i have 4 coaches on a class and i think this a good way of keeping things fresh for the kids and getting all coaches involved. Will be trying it next week !!
It certainly works well for us, if you have a mixed class (like us) you just need to make sure the coaches change what they teach to the differing level, maybe not the technique just the amount of detail etc