If I may, my experiences with large system change is that one of the errors we very often make is seeing it as a system change. We don't take into account the change of management, the people aspect. The people aspect is training, communications, and all the tools.
This is very often an investment. They say yes, we don't need it; let's go with the gizmo, and so on. No, we have to really focus on the people aspect—so communications, training, and retraining. Probably there is also some new capacity, new skill, that we will have to acquire, and this is not an easy part of it. But we should not shortchange ourselves on this.