Coy medic, get out of the mindset that TCCC is more or less advanced skill set. Its not...its just a different approach to giving care to the patient.
It involves both the shooters and the medics (regardless of the tactical situation) to know and understand certain protocols that will aid in the rapid treatment of life threatening injuries. In particular three life threatening injuries that cause preventable deaths on the field, extremity hemorrhaging, compromised airway, and tension pneumothorax.
It is not designed for non medical pers to become medics, nor gives them any ability to replace them. Its just a different level of training.