Good on England for getting rid of Southgate. I don't know who they should replace them with, but I do know that they needed to dominate matches better than they did. Their roster is just too good, for laying back, and passing back/side to side. They needed to put teams on their heels.
As for USMNT, I think Churundolo has the inside track, but I really don't know at this point who can pull off a re-work of this team in two years. I do know Gregg had to go, but he should have been dropped right after the World Cup to give the new manager adequate time for NA World Cup.
CONMEBOL is to be blamed for the horrible mismanagement for COPA....including the poor pitches, and security for multiple matches. Since this time around US Soccer did not run it, CONMEBOL appears to have gone for as much money as possible, so corners appear to have been cut.