I come at this from a Sports Therapist background. I freely admit that there can be a large variation in the quality of training, something that needs to be addressed. I also admit that my theoretical knowledge, especially of neurology issues is not what it should be, which I'm working to rectify as I want to be the best therapist I can be.
I'm currently working on my own with a small rugby team however I spent the last two seasons working with elite rugby squads. As part of their multidisciplinary teams I've seen that every body, and every profession, has their strong and weak points. It's by recognising these and working appropriately together that we can provide the best possible treatment to our clients.
As an example the physio/osteopath would look at relevant joint/back injuries, another was the best to talk to for post operative rehab. Another was the best for the sort of 'every day' muscular issues that arise from training twice a day as he had the best skills in massage, NMT etc and for late stage rehab as a link between the physios and conditioning coaches.
I had a physio come to me and give me a great technical diagnosis, then say "what do I do?". I've seen doctors trying to take a pulse through four layers of tape when the neck and the other wrist were free, an osteopath manipulate prop's neck before a game (when he asked for some warming up) who then ran on the pitch with a sore neck and lasted 10 mins. Different letters after your name does not necessarily make you better.