Many sqns and HQ had exchange aircrew and this process continues. It is not just the US but commonwealth and NATO that has exchange billets.
Around 1972 was a period when many accidents were believed to be the resonsibility of the command chain. It was likened by some station commanders to living on a knife edge. All the thrill of commanding a first class sqn or station with the sword of Damocles waiting to fall. This had largely passed by the 80s although the feeling was still rife that they had to be seen to take positive steps in any event of flying discipline etc.
The grounding of the CO may have been justified then again maybe not.