Ahead of a much-needed summer rebuild, Celtic will be looking to appoint the right individual for the challenge, and a host of high-profile candidates have been linked with the position over the past few months.
Here's a look at OddsChecker's top twenty contenders to become Celtic's next manager, as the race starts to heat up:
. GLASGOW, SCOTLAND - OCTOBER 03: General view outside the stadium prior to the UEFA Europa League group E match between Celtic FC and CFR Cluj at Celtic Park on October 03, 2019 in Glasgow, United Kingdom. (Photo by Ian MacNicol/Getty Images)
Celtic next manager contenders (Photo by Ian MacNicol/Getty Images) Photo: Ian MacNicol
. Mark Hughes - Current odds: 33/1
Offering an experienced option, Hughes has racked up 610 matches as a manager, taking charge of the likes of Blackburn Rovers, Manchester City. His last role was with Southampton, who he left after just 27 games in 2018. Photo: GLYN KIRK
. Damien Duff - Current odds: 33/1
He was part of the coaching side that saw Celtic claim a third domestic treble on the bounce in 2018/19, and went on to assist Stephen Kenny in the Republic of Ireland job. Photo: Mark Runnacles
. Slaven Bilic - Current odds: 33/1
He's out in China managing Beijing Guoan, after losing his job at West Brom in December despite getting them promoted last season. He's been linked with the Celtic job a fair few times in the past. Photo: MARTIN RICKETT
. Nathan Jones - Current odds: 33/1
The Welshman has done a fine job since returning for a second spell at Luton Town, saving the side from relegation last season and working to establish them as a mid-table side in the 2020/21 campaign. Photo: Nathan Stirk
. Thierry Henry - Current odds: 28/1
Could the Arsenal legend bring some much-needed 'Va va voom' back to Celtic Park? He was recently linked with the Bournemouth job, before Jonathan Woodgate was appointed. Photo: EZEQUIEL BECERRA
. Henrik Larsson - Current odds: 28/1
This would be quite something, wouldn't it? However, the bookies don't appear to fancy the chances of the Hoops legend getting the job. He's currently working as Ronald Koeman's assistant at Barcelona. Photo: Eric Alonso
. Shaun Maloney - Current odds: 28/1
The Hoops youth academy product enjoyed two spells with the club during his playing career, before retiring in 2017. He's currently a coach for the Belgium national team, who are ranked number one in the FIFA world rankings. Photo: Ian MacNicol
. Martin O'Neill - Current odds: 25/1
The 68-year-old had a spectacular spell with Celtic in the '00s, winning seven trophies and getting the club to a UEFA Cup Final. He's been biding his time looking for a new role, since leaving Nottingham Forest in 2019. Photo: George Wood
1. Mark Hughes - Current odds: 33/1
Offering an experienced option, Hughes has racked up 610 matches as a manager, taking charge of the likes of Blackburn Rovers, Manchester City. His last role was with Southampton, who he left after just 27 games in 2018. Photo: GLYN KIRK
2. Damien Duff - Current odds: 33/1
He was part of the coaching side that saw Celtic claim a third domestic treble on the bounce in 2018/19, and went on to assist Stephen Kenny in the Republic of Ireland job. Photo: Mark Runnacles
3. Slaven Bilic - Current odds: 33/1
He's out in China managing Beijing Guoan, after losing his job at West Brom in December despite getting them promoted last season. He's been linked with the Celtic job a fair few times in the past. Photo: MARTIN RICKETT
4. Nathan Jones - Current odds: 33/1
The Welshman has done a fine job since returning for a second spell at Luton Town, saving the side from relegation last season and working to establish them as a mid-table side in the 2020/21 campaign. Photo: Nathan Stirk