IT is not just the Celtic manager, ­players and supporters who hope that John Guidetti's stay in Glasgow is not a fleeting one.

The loquacious Swede has been welcomed with open arms by a media grateful for his regular outspoken and entertaining viewpoints on topics as diverse as life in Kenya, rapping and his culinary skills.

In a world of increasingly bland soundbites, Guidetti has provided much-needed splashes of colour. The striker's latest assertion - that Celtic can win a domestic treble and the Europa League this season - drew a smile from Ronny Deila. The Celtic manager is a bit more measured in his assessment of what his team can achieve this season, but he has no problem with his players shooting for the stars.

Deila believes the desire shown by the Manchester City loanee is a sign of burgeoning confidence within the player and the squad as a whole. After scoring five goals in his first seven games, it is no surprise that Guidetti has a spring in his step right now. His manager has little problem with that.

"That is why I love Guidetti: because he believes," said Deila. "You can see it in his eyes when he goes on the pitch: 'I'm here to score, I'm here to win.' And you can see it in the dressing-room.

'That's why I want to keep him as a player, get his contract permanently here, because he has the values I love. He's humble, he wants to learn, he wants to improve, and he is a winner; you can see that on the pitch. When you see the best teams in the world, they have no time for people being lazy or not doing the work. It starts with hard work, then we need skills - and Guidetti has both."

The 22-year-old has given an indication that he may be willing to put down permanent roots at Celtic. His Manchester City contract, where he has been since 2008, expires at the end of the season and should be continue scoring at such a prodigious rate there will likely be a long queue of suitors wafting new permanent deals under his nose. Deila sees no reason why Celtic shouldn't be at the front of that line.

"It's like it has clicked between Celtic and John," the Nor­wegian added. "One thing I know in football is that when you are at the right club, you have to appreciate what you have. You have to understand that your success is not all down to you, it's also the environment, the club that suits you and makes the best out of you. So far, we have done that with John, together with him.

"I think he can develop a lot, he can reach a lot of his goals here. I think it's vital for John to play. That's important. Here, he gets the trust he needs, and he produces. He is enjoying every day. If we keep getting good results, more people will come to the stadium, he'll play in bigger games.

"John Guidetti will be even better. We will do everything we can in our club to make him happy, so he wants to stay."

Guidetti is not the only John that Deila wants to hang on to. The Scottish Football Association has a vacancy for a performance director following Mark Wotte's recent resignation and there is a feeling growing that John Collins may well be the best man to fill it, given his previous work in the Scotland youth set-up. Deila doesn't doubt that his assistant would be a good fit for such a job but doesn't intend to lose Collins at this stage.

"I can say that John Collins knows what he's doing," said Deila. "He's a fantastic person with a lot of experience and knowledge about what is needed to become a good player. But I want to have him here, so I really don't hope that [a return to the SFA] is happening. He is too important for me and the club. But I understand that people want him.

"He has helped me a lot. The most important thing is we have the same kind of view of football, we want to create and to play. We know it takes time but we're working together every day to do it."

The most pressing priority for the Deila and Collins management team is tomorrow night's League Cup ­quarter-final against Partick Thistle. If Celtic are to indeed pursue honours on four fronts then this competition would seem to be bottom of their priorities but Deila insists that definitely isn't the case. "It's very important. Not just for me, for everybody. We want to win everything and the League Cup is the first trophy available. That starts on Wednesday against Partick Thistle."

Deila is not one to dwell on past successes. "I won everything in Norwegian football as a coach. I won the cup with a small club as a player. But I don't think back so much on those things. I never look at the medals I have. I would rather think of what I created with others. That's what drives me, to create and to have moments and experiences together.

"When you do that well, you get trophies. It's the same here, we need to create something good. If we do that, over time we will also have trophies. We really want it. I really want it."