My comments are in italics, they focus on primary care. I still think there's something to it however. That is, changing work to organize it around inflexible but powerful technologies. It is an unfortunate truth that we humans are far more flexible than our technologies. Change for us is painful, but it is possible if the rewards are sufficient.
Most companies have ten or so principal processes.
Begin by understanding what the processes's customer does with the process output. Learn the what and why rather than the how. The how will change. Don't focus on business process. Ignore everything except process redesign.