New Celtic manager Neil Lennon has taken the former Tims midfielder back to Parkhead, and he believes he can lead the club back to the top of the Scottish game.
Lennon had been in charge on an interim basis following Tony Mowbray's exit in March.
The 38-year-old former Hoops captain is relishing the task ahead of him, after seeing Rangers end a spell of Celtic dominance by winning the last two Clydesdale Bank Premier League titles.
Lennon said: "Celtic is my home. I've spent the last 10 years of my working life here and I look forward to bringing back the success our great club deserves.
"Whether player, captain or manager, I'm a Celtic supporter first and foremost and no-one will work harder to put a winning team on the park.
"Over the past few weeks I've had detailed discussions with senior figures at the club including chairman Peter Lawwell and (owner) Dermot Desmond, all of whom have been extremely supportive and I'm convinced that, working together, we have the foundations in place to put silverware back in the trophy cabinet at Celtic Park."