Kieran Tierney admits Martin O'Neill has restored calm and confidence at Celtic.
The 73-year-old Northern Irishman is back for a third spell in charge and second interim stint this season after the ill-fated reign of Wilfried Nancy, who lasted just 33 days.
O'Neill has immediately got Celtic winning again – they thumped Dundee United last Saturday 4-0 and can reclaim second place from Rangers with victory at Falkirk on Wednesday night.
Asked to sum up what a chaotic past few weeks, defender Tierney said: "It was disappointing.
"It's not good enough losing that many games in such a short space of time at Celtic, it is never acceptable.
"For now, it is just about making it right and winning again. The first day we came back in and they [O'Neill and Shaun Maloney] were here it was just like normal again because we built up a good routine in the however many weeks they were there before, and we had good results, good momentum and it just feels like we've picked up from there.
"I think at any club if you lose games, you're going to lose confidence. But this group of staff that's come in, they're so good at giving you confidence and making you feel good about yourself.
"I think you could see that at the weekend as well."
