At an engineering conference this year, I had the opportunity to sit in and listen to consulting engineers discuss the need for them to commission operation and maintenance (O&M) when the job is turned over to the customer. It was a hotly debated forum about guiding the O&M responsibilities through the commissioning process. Participants duly noted, when working for an architect, it should be the architect's responsibility to close the loop between project completion and owner acceptance. Unfortunately, these engineers felt the architects were not qualified to fulfill this responsibility, and so the task had fallen on them. Thus, they discussed how to commission O&M.
As someone who knows enough about O&M "to be dangerous" but has never operated a building, I found the consulting engineers out of line. Listening to them discuss how a facility engineer could learn from them, I thought how they would react if a facility engineer told them how to design an hvac system. Designing a building system and operating and maintaining it takes a different type of person, and neither should take lightly the other person's job requirements and knowledge.