While it would be good to coordinate efforts enough to keep the units from tangling, to let out the information on where the Sheriff's units were going to be active might pave other corridors for drug runners. People would have to be able to maintain OPSEC, and in my estimation, that won't happen if enough people are aware of who is where.
No, he shouldn’t tell them where HE is going to be. But he could tell them particular areas to work in each day, so he and his men would know where they are.