Im probably wrong as usual but it does seem to me Pompeo has the almost unique ability to work with Trump. The ability to realize he works FOR Trump from one minute to the next. At least to me, he doesnt come across as someone who is trying to impose his will on events (...the Khadafi model... to Kim!) but carefully couches each word to reflect Trumps desires fairly precisely. Pompeo also seems to have the almost unique ability in DC to keep his mouth shut when he should. Especially note Tillerson who was advertised to have not only great connections but great wisdom. Right up until Tillerson called Trump a retard when talking to a reporter. How frigging retarded is THAT?
Tl/dr. Pompeo may actually be great at this.
From what Ive been reading, it sounds like Bolton spent as much or more time trying to block Trumps wishes as trying to implement Trump policies