FWIW, long ago in another lifetime (and before "The A-Team" caused an A team to become an ODA) while prowling around rice paddies and through elephant grass and sleeping in bamboo clumps, the usual mode was to just break into four man teams that fell out sort of by default without regard to grade or MOS. Worked for most Teams most of the time. Every now and then a team would have a difficult to like personality and someone would have to be ordered to use him but that usually worked out okay as well.

Back in the day with a bunch of iconoclasts there was strong aversion to top down doctrine so Group just said do it and most C teams just let the teams work out the TTP. Had the added advantage of encouraging initiative -- and bouncing different ideas around helped everyone develop better approaches. People are pretty quick to sense what will work best and adopt it but, conversely, regardless of what Building 4 says, one size doesn't fit all in the realm of minor tactics...

There was always a battle between the UW versus ID versus DA crowds, fans for all three approaches could be found. My observation was the DA guys didn't like indig work (and that varied by country or area), the UW guys didn't like the extra and repetitious work that went with training for DA and the ID folks were in between and mostly were in the "whatever it takes" mode. I mention that only because it affected the way the 4 man teams shook out, they tended to be different for each mission.