Brendan Rodgers has already been shown the never-go-back theory is a myth. Billy McNeill was the first to prove that, bringing magic and glory on returning to the Celtic hotseat.
And Neil Lennon maintained the thread of success when he walked back in the door to cover Rodgers’ defection to Leicester City. Rodgers has a tough job to replicate what he did before with his magnificent haul of seven trophies out of seven before heading south. But he will take heart from Big Billy and Lenny.
McNeill, just as he was a pioneer as a player by becoming the first British captain to lift the European Cup, also had a hard act to follow when he became the first man to return to the top job at Parkhead. The title win of 1978/79 when his 10 men beat Rangers in the final game of the season to win the league, was the first of three titles. There were a Scottish Cup and a League Cup, too.