Hoops manager Ronny Deila has warned that the days of Celtic even being able to land a top talent from the Premiership are over.

When Martin O'Neill arrived at the Parkhead club he was able to entice Chris Sutton, Alan Thompson and Neil Lennon from England.

Even before this week's announcement that the deal for the Premiership rights had been sold to Sky and BT Sport in a deal that amount to £10m PER GAME, Scotland was already a million miles off the financial pace set by those south of the border.

Deila is well aware that the days of big-money deals to land players of the ilk of Sutton and Lennon have long gone.

"That time has gone, when you knew you could get big players in England coming to Celtic," acknowledged the Celtic manager. "Because the money in England now is so unbelievably

different.

"So we have to be very good at what does not cost so much money and that is creating a culture of development and performances.

"Because we are also going to have good young players and you have to build up Scottish talent like Armstrong and Mackay-Steven, and Liam Henderson."

While Deila believes that the key for Scottish football lies in developing young players and investing in much better facilities than are currently available, he has also insisted that there is no reason why the SPFL cannot unearth the next global star.

Deila was credited as being Martin Odegaard's mentor and while the Norwegian believes that such a talent comes along once in a generation, he is adamant that with the right coaching you can find a player who is capable of reaching the very top level in the game.

"Martin is a once in every 10 years players in Europe," he said.

"I have seen very good players but he is very special at that level.

"But Messi can come from Scotland if you believe in it.

"You have to develop him like Messi and that is not about results. It is about making him into a complete football player."

And the key, according to Deila, is giving players the confidence to express themselves and, crucially, learn from their mistakes.

"If I tell my players they have to give the ball back to the midfield because they can't take the ball with their back to the goal then they will never play for a Liverpool or whatever," he reflected.

"You should never give young players boundaries. I have told my first-team players if they make a mistake with a pass I couldn't care less.

"As long as you work hard, mistakes will happen. If they make a mistake I will never have a go at them because they have to have freedom on

the pitch so they learn.

"If they make a mistake one week and the next then okay, but half a year later they need to be a better player.

"If you haven't developed in six months then they have a problem, and I have a problem.

"Longer term if you get freedom you relax more and can be creative.

"No-one develops if they are afraid to make mistakes. It is not about results as youngsters, it is about processes.

" If they have good processes they get results."