I suppose if you’ve been allowed to make yourself the de facto director of football then that role is hard to relinquish.
Recent decisions and non-decisions relating to a proposed loan move for a Manchester City player reinforced that these are changed days.
Let’s just say that I am even more convinced now that Brendan Rodgers is totally in control of all football matters at Celtic.
Moreover, Mr Desmond recently left a senior person at the club in no doubt that the custom and practice of the Deila days are now past.
For the avoidance of doubt, areas of responsibility at Celtic are being restated and reinforced.
One of the most difficult things for any organisation is to overhaul an ingrained culture.
In doing so, it is important to keep the good while getting rid of the dysfunctional.
Sometimes this requires some old stagers to exit the stage and change the menu.
The off-field commercial possibilities of Celtic in the Group Stages of the Champions League is a game changer.
A Parkhead insider told me yesterday that it was possible that that the club could reach a turnover of £100m this year.
Which is just as well given that Celtic will soon have to cope with the over investment promised by Mr David Cunningham King.