"He'd be happy to revert to the role where he acts as a link between the coaching staff and the board."
Hughes, who became close friends with Grant while he was director of football at Pompey, added: "Avram is a student of football. I had countless conversations with him when he was here about Barca, their players and the way they play.
"He seems to be on a crusade to bring a similar brand of play to Stamford Bridge.
"A big reason for Jose Mourinho leaving was that Abramovich wanted to see a type of football the Special One was not delivering."