BRENDAN Rodgers looked on from below like a proud father as Scott Brown once again took that magical walk up the Hampden steps to collect the Scottish Cup and crown back-to-back trebles for history-making Celtic.

After an invincible season that will most likely never be repeated came a double treble. It is the stuff of dreams for any manager. 

It has been a period of dominance that is unprecedented in the Scottish game. 

Read more: Martin O'Neill insists Brendan Rodgers can follow up double treble with Celtic European success

You just knew when Callum McGregor scored the opening goal on Saturday that the result was virtually a given.

Celtic have a level of confidence and assurance in big games under Rodgers that you just expect them to turn up and win. There’s very little doubt from the supporters or players.

When Brendan walked in the door at Parkhead it was viewed as a statement of intent by Celtic who, under Ronny Delia, looked to be flagging. The decision was made after the board had just watched Rangers under Mark Warburton beat them in a Scottish Cup semi-final and the gap appeared to be closing. So they put their money where their mouth was and brought in a top-class manager.

Quality costs money and Celtic went out and got it in Rodgers. And boy has he shown his class not only by winning everything in his first two seasons at the club, but by the way he has improved and revitalised the players who were already there when he walked in.

Read more: Celtic manager Brendan Rodgers in talks over Odsonne Edouard deal but cautious over summer transfer kitty​

It’s easy and actually very common for a new manager to come into a club and clear the decks. I know this from experience. Managers want to bring in their own players because ultimately they are judged on signings and results. But the way Rodgers has coached players who looked either done or not good enough under Delia to outstanding, consistent form levels has been nothing short of remarkable.

Take Brown for instance. I can remember having a conversation on BBC Sportsound just after Celtic had been beaten away from home by Lincoln Red Imps. The knives were out for him big time that night.

His “legs had gone”, he had “no energy to get about the park” and “needed replaced” seemed to be the general consensus. Large swathes of the Celtic support would probably have agreed. Look at him now.

He has played the best football of his career under Rodgers. He looks as if he could run all day and has that yard of zip back. His diet has changed as has his day-to-day training routine. He has been a colossus for Celtic and proved a lot of people very wrong.

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Callum McGregor is another. A bit-part player under Delia and an easy target for sections of the Celtic support to get on his back. Again he has been transformed and is one of the first names on the Celtic teamsheet.

In big games both domestically and in Europe he has produced goals and superb performances consistently.

Rodgers trusts him implicitly in these games and for good measure. Again on Saturday he got the all important opening goal with a wonderful finish. From looking like a lad who was going to prove not quite good enough and maybe move on, he is now a player who Celtic wouldn’t even contemplate selling for less than £5m. That’s an incredible turnaround.

James Forrest, Kieran Tierney and Tom Rogic again have all improved hugely under the guidance of Rodgers. Much like Steve Clarke at Kilmarnock, the sign of a top manager is not going out and buying loads of players but by coaching and making the players you have or inherited better footballers.

Read more: Martin O'Neill insists Brendan Rodgers can follow up double treble with Celtic European success

In the transfer market Moussa Dembele, Scott Sinclair and Olivier Ntcham have been big hits and it’s more signings like these that Celtic need to make in the summer to go and make a bigger impression in Europe because for me that has been the only blemish on Brendan’s report card so far.

With the imminent arrival of Steven Gerrard on the other side of Glasgow, next season promises to be a very interesting one. Can he and Rangers make any inroads into closing the monumental gap between the two clubs?

With that man Rodgers still at the helm, the smart money would be on history-making Celtic securing an unprecedented triple treble.