I don't normally add my $.02, but I like this topic so I will try to keep it going for some good discussion. My department has a minimum of 12 on duty staffing 3 engines with 3, 1 truck with 2, and the duty chief. When we are above minimum additional staff goes to the truck. Engines handle the EMS runs so it has happened the truck has been 1st due with no water. It has also responded mutual aid and been the 1st company on scene. I have wondered if we rely too much on traditional roles of engines, rescues, and ladders as opposed to functions or tasks needed on the fire ground. I know the simple answer is to increase staffing but everyone knows how difficult it is these days. I have been contemplating a quint midi concept in place of an engine and the straight truck we operate now. If you talk to some people like Rochester they still have guys that were a proponent of the QM concept. Let the debate begin....