The Three Lions's coach came in for criticism from some quarters following last Saturday's 1-1 draw with the USA, but Johnson remains upbeat that he is still the man to lead them to glory.
"He is a very good manager and a nice man," said Johnson.
"He is well aware of what he wants to do and he knows how to do it. He knows how to get the job done and is definitely a manager at the top of his game."
He added: "Every kid dreams of playing for England in the World Cup so what I am doing now is a dream come true. There are a lot of good teams and every game is difficult.
"The further we go in the tournament, the better we will be. We just need to concentrate on playing the way we think we can and see what happens."