I'm not sure how things like this come about. As I can testify, Scandinavia is a place where coaches are very dedicated to their work.
Every year there is a Norwegian champion, and this year it Strømsgodset. Deila seems to have caught the eye of Celtic because he has earned success with an unfashionable club in Norway.
I'm not sure what makes him so different from previous Norwegian coaches because there are not too many managers from Norway who have made the step up to British football.
But of course, you can't generalise. I'm sure Celtic will have done their homework on what he can bring to the club in their current circumstances - namely not having as much money as clubs of a similar size around Europe.
He is a young guy, and he will have to work under a tight budget in Scotland. That is what Celtic will find attractive: he can't be a cheque-book manager, but will have to think on his feet.
The only Norwegian coaches I can recall in England have been Ståle Solbakken at Wolves, Egil Olsen down at Wimbledon and Ole Gunnar Solskjær working in Cardiff.
None have really done overly well. It is a gamble for Celtic appointing a young Norwegian coach, but is an interesting one.
You could probably put most coaches in charge of Celtic and expect them to win the Scottish Premiership, but of course there is a bigger picture.
A manager of Celtic will always be judged on what he does for the club in Europe. That is what gets them noticed. And especially now when there is no Rangers in the league.
Deila simply has to get them through three qualifying rounds and into the Champions League group stage. There are enough Scottish managers out there such as Steve Clarke, Malky Mackay or Owen Coyle who could have taken that job.
But Celtic are obviously looking for something a bit different, who might have an alternative view on the style of the side, player recruitment and coaching.
I wasn't surprised Roy Keane didn't want to be considered for the job. I think Roy is at the stage of his life where he has tried management, and found out that he's just not very good it as things stand.
But credit to him for realising that he needs to learn from other managers, and for being prepared to work with Martin O'Neill in the Ireland set-up, and alongside Paul Lambert at Aston Villa.
In a way, that is a positive thing for Roy Keane. Keane has taken a step back to acknowledge the fact that he perhaps needs to look at what other people do.
Roy is very headstrong so it is brave of him to adopt this tact as he tries to learn. He has given up his punditry work with ITV so he is obviously looking at his future as a coach in the longer term.
I also think Celtic aren't the club for David Moyes. He is quite prepared to wait his time to get back into management. It won't be quite as big a club as Manchester United, but he will want something just below that like Newcastle United or an Everton.
He is looking at that type of job, and I think he will be quite prepared to wait for one of those to come up.
I don't think he will be interested in Southampton or West Brom. It is too big a gap for his reputation. Celtic would have done him no real good.
He played for Celtic, but I don't think it is the club for him as a manager.
He doesn't need a job where you are given very little credit. And at Celtic, he would be given very little credit if he won the Scottish league.
He needs to rebuild his reputation, and where people will look at him and think that he has really made a difference.
The problem for guys like Moyes taking on a job like Celtic is that even if he guides them into the last 16 of the Champions League, like Neil Lennon managed, they still run the risk of taking a hiding from a club who are spending millions of pounds more on players.
Celtic played very well against Juventus yet still lost 5-0 over two legs last year. That is the jump they have to make. It can only be bridged by serious cash.
If they get a real going over, it almost defeats the achievement of reaching the last 16. It is very difficult for Celtic.
They are a huge club, but the money is not there for players. That is why managers like Moyes and Keane are better waiting for something better to come up.
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