"By saying manager, it is kind of a head coach's position really because once you have a technical director like you have in Europe, they help you with recruitment.
"They do the 'nuts and bolts', the travel arrangements, the hotels, and all that kind of stuff.
"As long as you have the final say of who comes in and out, these people are your help in the boardroom. I never had that at Portsmouth.
"It works for me and Celtic is an unbelievable club, you have a 50% chance of winning something up there."
He added: "I've not applied for the role. I know Wim Jansen, who has put me in there.