Yes: Model provides cost-effective surgical care.
I can say without qualification that acute care surgery is the best model for handling surgical emergencies. Not only is the model safe and cost effective, but it solves many of the problems plaguing the surgical field and emergency departments.
With the super-specialization of surgery, rarely is a surgeon available who is interested and competent to perform emergent interventions. And because of the inconvenience and poor reimbursement associated with emergency call, it is hard to find a surgeon who is willing to take call.
From a hospital viewpoint, having acute care surgeons on staff is efficient because we are in the hospital 24/7, ready to operate, provide critical care, and minimize hospital stays.