John Hartson believes Celtic boss Neil Lennon has instilled a similar winning mentality in the team as a previous incumbent, Martin O'Neill. Lennon has guided Celtic to 14 consecutive Clydesdale Bank Premier League wins since replacing Tony Mowbray, initially as caretaker manager, in March.
But Hartson has praised Lennon for the way he has recovered from the two European exits to keep pace with Rangers in the SPL ahead of Saturday's visit of Hamilton.
"There are people waiting for them to slip up all the time," Hartson said.
"Sometimes they don't play very well and still manage to win, which is something we did under Martin O'Neill.
"We didn't always play well but someone would pop up with a goal, normally Henrik (Larsson).
"I watched them play against Kilmarnock, they didn't play great but managed to win.
"That is something Neil has instilled in the players and it's a great habit to have.
"Obviously the European thing was disappointing and no one knows that more than the manager. I think a lot of the fans were a bit undecided but the crowds are picking up again and they are on a great run.
"I think he has done exceptionally well to recover from going out in Europe."