Celtic is making slow but steady progress toward appointing a new manager amid ongoing discussions with several candidates. The club has engaged in constructive talks with Robbie Keane, while the future of club legend Martin O'Neill remains uncertain.

Martin O'Neill, who previously guided the team to a dramatic league victory last season, could potentially return for a short-term role. If he chooses to accept a one-year position, it would provide stability as Celtic navigates a significant squad rebuild and seeks to appoint various key staff, including a permanent chairman and head of recruitment.

However, O'Neill's age—74—raises questions about his willingness to commit to a full season, especially with the Champions League play-offs looming.

Should O'Neill opt out, Keane emerges as the frontrunner. He recently resigned from his position at Ferencvaros after a mixed season, but he has built a solid management reputation, having won league titles in Israel and Hungary. Desmond's support for Keane, who has already assembled a backroom team including Stephen Glass, Scott Brown, and Jonny Hayes, strengthens his candidacy.

Craig Bellamy remains a consideration, though he is currently focused on leading Wales into the Euro 2028, having previously declined the Celtic position last October. Meanwhile, Roberto Martinez, the Portugal boss, is seen as a long shot given his commitments this summer. Celtic aims to finalize a managerial appointment in time for pre-season, although that timeline may be challenging with Martinez's ongoing World Cup duties.