Opinion Essay: Should "El Pep" continue training Barça FC?

In my opinion Guardiola took the best option. When someone rich the top doing something, the only option is to go down from that point.
He has coach F.C.Barcelona for four years and he has won everything. Moreover these four years with so many matches have stressed him out a lot.
Furthermore, I think Barcelona is declaning from the top and this is stressing him so much.
In short, I am agree with his decision because  Guardiola was in the very top of football seeing that he is considered the best football coachman in the world, and it is better to stop in time and left Barcelona with all the honors.