Interim manager Martin O'Neill guided Celtic to a domestic double after winning the Scottish Premiership and the Scottish Cup [1, 2].

The achievement places the 74-year-old manager in a strong position to negotiate a permanent contract [3]. Because O'Neill was originally appointed on a short-term basis to steady the club, his success has shifted the internal conversation from crisis management to long-term planning [1].

Celtic secured the domestic double by claiming two trophies [2]. The culmination of this run occurred at Hampden Park, where Celtic defeated Dunfermline 3-1 in the Scottish Cup final [2]. The victory marks a significant turnaround for the Glasgow-based club under O'Neill's temporary leadership.

Supporters and club officials are now weighing whether to extend the interim agreement. O'Neill said he has a desire to resolve the uncertainty regarding his role at the club.

"I hope to sit down with Dermot Desmond this week to thrash out my future," O'Neill said [2].

The manager's tenure was intended to be a brief stabilization period. However, the scale of the success, winning both the league and the cup, has created pressure for the board to provide stability in the dugout. The decision now rests with the club's leadership and owner Dermot Desmond.

While O'Neill's age is a factor in long-term planning, his immediate impact on the pitch has silenced critics who questioned the short-term appointment. The club must now decide if the current momentum warrants a multi-year commitment, or if a new permanent search is required.

Celtic secured a domestic double (Scottish Premiership + Scottish Cup)

The transition from an interim to a permanent manager often depends on immediate results rather than long-term philosophy. By securing both major domestic trophies, O'Neill has removed the risk associated with his temporary status, forcing Celtic's board to choose between the proven success of a veteran manager and the potential of a long-term project with a new appointment.