Ronny Deila believes he is a better manager now than when he first took over the Celtic job.

The Norwegian had to navigate a tumultuous first few months in the job as he endured a baptism of fire.

But having come through it, he believes he is a stronger gaffer for the experience - and is determined that he can still take Celtic onto the next level.

"This club is bigger than I thought it was," he said. "I have had a year that you cannot go to school to learn.

"You can try to prepare and educate yourself, but you have to be in the fire to understand what it is all about. This year there have been so many challenges.

"There has been so much learning, so many lessons, so much fun and also so much pain. I have learned a lot this year, more so than I have ever done in my career, either as a player or as a manager.

"I feel that I am a better coach now than when I arrived because I have had to learn so much.

"This club is a giant that can do big things."

And Deila believes that he has set foundations from which he can build a Celtic side that continues to be successful.

This season the Hoops set a new defensive record by creating the lowest goals-against tally since 1919 and Deila is looking to establish further achievements of note next term.

"I want to keep on improving," he said. "I want my team to keep improving. We can score more goals. We can concede fewer. We can be fitter, sharper, makes fewer mistakes.

"Football is about small details and it is small things that can turn things around but you always have to think how important it is to give 1000 per cent in training and in everything you do around the club.

"Good preparation leads to good results. If we can continue then my ambition is that we will be a very, very good side. A team that people like to watch.

"I love it here. I feel a part of it. I feel wanted and that is important. From the first moment that I was offered the job by Peter Lawwell and Dermot Desmond it felt right. There was never anything in my gut that told me to stop, it just felt like the right step for me.

"I did have doubts. I did have concerns. But I tried to stay strong and I think I have come through it a better manager."

Deila's main concern now is bringing in reinforcements to the club.

John Guidetti appears to be on his way out while Jason Denayer has gone back to Manchester City.

A central defender and a centre-forward are high on the agenda for the Celtic boss although he has hinted that in addition to ability he will also sign players on the kind of attitude they have.

"We are one unit now," he said. "Hopefully we can bring in players that are what we need on the pitch and off the pitch. That is important.

"You have to want to come here and get better. We have targets. We know what we want. But it is not always easy. All I can say is that there is work going on every day to try and make us stronger."