Aiden McGeady admits the departure of Tony Mowbray was perhaps the jolt the Celtic players needed.
Neil Lennon was installed as interim boss last week after the 4-0 defeat at St Mirren brought an end to Mowbray's short and troubled tenure as Hoops' boss.
The Parkhead players responded with a 3-1 home win over Kilmarnock on Saturday and despite being 10 points behind Rangers at the top of the Clydesdale Bank Premier League, they will look to build on that against Hibernian at Easter Road on Sunday.
The Celtic midfielder claims the recent managerial changeover could rejuvenate the club after a hitherto disappointing season.
‘It takes something like that to kick-start everyone and give them a boot up the backside,’ McGeady said.
‘That's what we needed because we have underperformed and we are so far behind Rangers and it shouldn't be like that.
‘We feel we are a better team than that and it should be a lot closer.
‘It is down to ourselves but it is the manager who takes the blame which is the unfortunate thing about football.’