Example: we pull up on a scene where the driver of the car t-boned by a van is trapped by the firewall being curled up around his left foot by the lateral impact. (Yeah, that hard). I'm a former firefighter with rescue school, other firefighters on scene are extrication oriented, they're revving up the Jaws and the K-12 saw but don't see how they can be of use short of cutting the front off this early Sixties tank of a station wagon. My senior partner, an EMT-A with a tour in Nam with the Rangers, finishes splinting the driver's broken arm (while I moved his DOA wife out the other side), looks at the floorboard, opens his Buck knife, cuts the carpet and, voila, out comes the miraculously uninjured foot and, with it, our victim. He was excellent, we were not, despite our creds and experience; he was the better man.
Give me an experienced EMT-B who is good, versus a green and arrogant anything else, anyday.
(Ask me about the podiatrist at the accident scene sometime).