Where the manager of Celtic goes, the head coach of Team America follows.

Barack Obama created a buzz on the internet last Thursday with a clever little film geared towards urging the United States to sign up to healthcare plans. In it, he shoots invisible basketball hoops alone in his office in the White House, takes photos with a selfie stick, poses in the mirror with his vice-president Joe Biden's sunglasses on and, generally, gives the impression he does not take himself too seriously.

The idea is that he sells his message by letting us see that he is human, that he likes to have fun, that, away from the campaign trail and the glare of the media, he is capable of the same, silly behaviour as the rest of us.

It works pretty well. It shows the president in a positive light. It can be taken as read, of course, that he pinched the entire concept from watching that wobbly mobile-phone footage of Ronny Deila fist-pumping his way round his local boozer and showing impeccable taste by getting up to dance to Eddy Grant records in the wake of his team's recent victory over Rangers.

Where Obama needs 40 scriptwriters and a PR team, though, Ronny only needs four pints.

Over and above the ethical issues raised by filming people out on the randan and sticking it on a website, it seems fair to say that the surfacing of that video does not seem to have done Deila any harm whatsoever.

Yes, it would be hard to imagine Martin O'Neill doing his trademark star jumps on the old pool table in Baird's Bar to the delight of the mad squad, but ideas of acceptable behaviour are changing by the day.

Being wholly interactive with the best and worst of the general public is now, in so many walks of life, a desired state of being. Showing yourself to be 'a good guy' carries greater worth than gold.

Deila is in a fairly favourable place at the moment. Questions over his suitability for the role of Celtic manager remain, but even his most vocal critics are drawing back from demanding his removal. He appears to be getting his players onside.

The first Old Firm game in three years was effortlessly negotiated. A gap has finally opened up at the top of the SPFL Premiership in the wake of an inordinately hard struggle with Aberdeen. Celtic, for all the difficulties of the past six months, remain active in all three domestic competitions.

It is in the Europa League, though, that the Norwegian can really build on the momentum of the past few weeks and guarantee himself a certain longevity in his current job.

Internazionale provide the opposition in a first leg tie in the last 32 on Thursday. Parkhead, for the first time in a long time, was sold out within days of tickets going on sale. The history that exists between these two clubs, particularly the events of a May day in Lisbon in 1967, will only heighten the frenzy.

This is Deila's moment, a heaven-sent opportunity against an Inter team enduring a quite miserable campaign to create something special and memorable and place himself into the heart of a support giving the impression it wants to welcome him in.

He does have injury concerns with Mikael Lustig out and Kris Commons doubtful, but Inter have half-a-dozen defenders on the treatment table too. They are stuck in mid-table in Serie A. The difference in mood between the two camps is best exhibited by the Italians' most-viewed internet video of late, which shows their striker, Mauro Icardi, calling his team's supporters "pieces of s***" during a most vigorous exchange at the end of a 3-1 defeat away to Sassuolo two weeks ago.

Inter are favourites to progress. They have to be. They pay more money. That means they get better players. Those are the economics and realities of modern football in the global environment.

Their league position proves that things do not always work out as planned, though. Any progress being made by Roberto Mancini since replacing Walter Mazzarri as head coach in November is slow. Celtic will never have a better chance of beating them.

Whether as a football coach or a political leader, reputation and legend will be formed by meaningful achievements. Deila and Obama share another common link in that neither has done enough, yet, to earn their spurs.

The Celtic manager's big chance is now here. This will be a thunderous, old-school night in the east end of Glasgow. He faces a formidable foe, but one weakened and vulnerable in the wake of recent travails.

It is to be hoped Deila sticks to his word and goes for the throat.

Carpe diem, Ronny. Or as one particular world leader might say: "YOLO, man."