Business process management can be applied to all facets of your business and doesn't always involve automation. There are tasks and actions that happen in your organization every day that if analyzed might yield some surprising results. That is what business process management is; mapping out current processes and analyzing them to see if there are more efficient ways of accomplishing the end goal. The efficiency can be gained through some form of process automation or by simply changing a small part of the process.
Check out this article about UPS and left turns, http://priceonomics.com/why-ups-trucks-dont-turn-left/. This is a perfect example of how changing a small part of the daily delivery process can make a huge impact. Who would have thought that avoiding left turns would have such an effect on fuel consumption? But when you have 96,000 trucks on the road making deliveries, a small efficiency gain on every left turn lost adds up pretty quickly.