Oh yes there are tremendous money saving possibilities with CO's. You could halve them like this:
Present circuits double up so that one CO looks after an expanded circuit of 40 congregations. Wife is allowed to type up all schedules, be his secretary. (I mean if Monica Applewhite can see the elder book and branch manual then why not?) He must visit each congregation at least once a year. He has a pool of at least six (unpaid) brown-nose asst. substitute CO's from among the 40 congregations who can do the other visit in the year.
Then consolidate the congregations so that the 40 drops to 36 which will allow the CO a bit more time to exercise control over difficult congregations by personally visiting twice a year where needed. (or for a half week along with the sub CO)
This will allow a bit more time for extra assembly days as the circuits will need to be divided into A.B.C.D. sections.
Think of all those cars, apartments and insurances that can be saved. Good eh?