Pete Gaynor is learning what it is like to serve a mercurial leader, one who is defined as "subject to sudden or unpredictable changes of mood or mind." See this story, Trump and FEMA chief contradict each other on Defense Production Act.
I can tell you what this does to subordinates. It is like watching a dog that has been taught to heel. They never take their eyes off their master. It also means there is no "freedom" to innovate or move beyond the speed of the master. Unfortunately, the president is not as generous with treats, even to those who perform the trick well. Like the now-Special Envoy to Northern Ireland.