Don't even try to pretend like this is not the most important part of cyclocross. If you are not optimizing your cornering you are losing speed through each corner. If you don't have a good sense for what chain ring you should be on for the upcoming section you might lose a lot of power, speed and positions.
20 mins - Warming up and intro
10 mins - Starts: Holeshot game, 2s and 3s
10 mins - water break
10 mins - section one gear selection
10 mins - section two cornering
10 mins - section three gear selection
10 mins - section four cornering