Clear rules and high volume are also exactly the conditions where a small mistake repeats before anyone notices. The same properties that make this the fastest place to start are what make governance non-negotiable.
Where the friction is
Jobs get scheduled by whoever answers the phone, with no view of who else is committed that day, so the plan gets rebuilt by hand every time something changes. Standard procedures sit in a folder nobody opens, so the same question goes to the same senior person every week. A delay surfaces as a customer complaint rather than an internal alert. Handover between shifts relies on a verbal update that does not always happen — the second shift starts the day rediscovering what the first already knew.
Where this usually goes wrong
The common failure is treating the schedule as the thing worth automating and the procedures as someone else's problem. A faster plan is only as good as the procedures the team follows once the plan changes. If those still live in an unopened folder, the speed gained in scheduling is lost again in execution. The two get built together, or the business ends up with a fast plan and a slow team.