For the student, the consequences are often the most immediate and personal. Supervision breakdowns can lead to delays in completion, loss of confidence, mental health deterioration, and in some cases, complete withdrawal from the programme. The emotional toll can be substantial, particularly when the breakdown occurs at an advanced stage of candidature. Students who experience failed supervision often report feelings of abandonment or confusion, especially where institutional mechanisms for mediation or support are unclear or inconsistently applied.

But students are not the only ones affected. As supervisors, many of us have encountered — or perhaps experienced — situations where the supervisory relationship becomes strained. This may result from misaligned expectations, lack of communication, conflicting feedback from co-supervisors, or diverging views on research direction. Whatever the cause, the emotional labour of navigating a breakdown should not be underestimated. Supervisors may feel personally or professionally undermined, particularly in systems where doctoral completion rates are closely monitored or linked to performance evaluations.

In cases where conflict escalates to formal complaint procedures, the reputational and emotional toll on supervisors can be considerable. Institutions may initiate reviews or place restrictions on supervisory roles, even where fault is not clear-cut. While robust oversight mechanisms are essential, they must also be fair, transparent, and supportive of all parties involved.

For institutions, the stakes are not only personal but systemic. Every withdrawal or protracted delay has resource implications — in terms of funding allocations, supervisory workload, research outputs, and reputational standing. High attrition rates in doctoral programmes can undermine institutional credibility, particularly when attracting external funding or forming international partnerships. Moreover, unresolved supervisory issues can create a culture of silence or fear, deterring academic staff from taking on new students or disclosing when challenges arise.

Breakdowns often stem not from one-off incidents, but from accumulations of miscommunication, unclear boundaries, or unmet expectations. This is where early intervention and institutional culture matter. Systems that encourage regular check-ins, co-supervisory discussions, and student feedback — without stigma — are far better positioned to detect and address issues before they escalate.

Crucially, we need to foster environments where supervision is not viewed as a private undertaking, but as a shared academic responsibility. Peer support networks, supervisor development programmes, and mentorship schemes can all play a role in helping academics navigate complex relationships with greater confidence and care.

No system can prevent every breakdown, but institutions can — and must — take proactive steps to minimise harm. That means not only supporting students in crisis but also equipping supervisors with the training, resources, and collegial forums needed to reflect on their practice. In recognising the cost of failure, we also acknowledge the value of the supervisory relationship — not just as an academic transaction, but as a vital site of intellectual, emotional, and professional growth.