I do believe that you can screen and select GPF and still be GPF for this type duty. Three examples I know of:

Marine Recon, Marine Force Recon and the US Army's Asymetric Warfare Group. All have a screening and selection process. In the case of Recon, they do get trained in skill sets commonly associated with SOF, such as Combatant Diver (this will test your manhood) and MFF to name two. I am not sure what the Army's AWG standard they are trained to.
I do know that Recon has traditionally had a screening and further assesment (RIP then Amphibious Recon School) and those who didn't cut it were dropped.
So there is precedent for this. It seems to me that there is resistance from sectors of SOF, in having GPF carry out some of these missions. I say take the lead like the SECDEF has directed, and help the GPF who will be assignned to this, screen, train etc...bring their standards up. I think they will find that some organizations are a lot better than they think and it wouldn't be that big of a leap to do this.


Boot