Martin O'Neill: "I don't really want to change Roy Keane. I don't think that was the intention, otherwise it loses its impetus.
"Of course there are things we want to adjust and look at, but I have had an assistant manager in John Robertson for years and years at all the clubs I have been involved in, or most of them, and John was very, very good.
"John was more than a sounding board, more than that. I listened to his opinion - he had a very good opinion about football, he was a good judge of a player as well.
"But ultimately, he always left the decisions to me and that was the main thing. That's something that I have been used to now for 20 years and I wouldn't be expecting anybody to be over-ruling me.
"That's not the big 'I am', far from it. I have got great respect for Roy Keane, otherwise I wouldn't have asked him to do the job."