Former Celtic star Billy McNeill believes it would be a tough call for manager Neil Lennon to ever walk out on the club.
The Hoops boss recently stated that he could be one day lured to England but ex-Celtic, Manchester City and Aston Villa boss McNeill is very aware that it is difficult to walk out the Parkhead exit door.
"It isn't easy to leave Celtic and then go on to bigger and better things," he wrote in his column for SunSport.
"It's such a massive club it's difficult to make a step upwards once you walk out.
"I think you'll find countless players have found that to their cost down the years.
"Neil Lennon is an intelligent man who knows the benefits of being at Celts as well as anyone.
"At the weekend he spoke about his desire to manage in England one day in the future.
"But there's no rush. The fact of the matter is that the bulk of clubs in England aren't in the same class as Celtic.
"Sure, my time at Manchester City was many blue moons ago at a time when they weren't as cash rich as they are these days.
"There wasn't the same gulf in revenue there is now between the top clubs in England and Scotland.
"But I'm still of the opinion that there are only a few clubs in the Premier League who have the draw Celtic have currently."