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Whitbread plc t/a Thresher v Gullyes

Withdrawing the support you need to do your job can be a breach of contract.

The ruling

“The employer's failure to provide the support the role reasonably needed was a repudiatory breach, letting the manager resign and claim constructive dismissal.”

You are entitled to the reasonable support your job needs to be done. Strip that away and then hold you responsible for the results, and your employer may be in breach of your contract.

  • Keep copies of every request you make for resource, support or clarification, and whatever reply you get back.
  • Push back in writing whenever you are blamed for a shortfall that came from a lack of resource rather than your own work, so the mismatch is on record.
  • Get advice before you resign. Whether a gap in support crosses into a breach of contract turns on the detail, and a solicitor can weigh your records against that test.
Diagnostic

Should I resign? A quick check

A quick three-question check to work out whether your situation is about resigning, an unfair dismissal, or reduced compensation, and which guide to read next.

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Read the full case

The situation

A manager was never given the resources or backing she needed to do her job properly. When things went wrong, in large part because of that gap, she was still held to account for the results. She resigned and claimed constructive dismissal.

What the tribunal found

The Employment Appeal Tribunal found in her favour. In every employment contract sits an unspoken promise: your employer will give you the reasonable support you need to actually do the job you have been handed. An employer cannot hand you a role and then hold back the staffing, information, authority or resources that role requires. Do that, and it can amount to a breach of contract serious enough for you to resign and claim constructive dismissal.

This sits as a narrower duty than the broad obligation of mutual trust and confidence, but the two run alongside each other. In plain terms, an employer is not allowed to set someone up to fail and then pin the failure on them.

Full citation

Whitbread plc t/a Thresher v Gullyes | [1994] UKEAT 478_92_1905 | Employment Appeal Tribunal | 19 May 1994

Last reviewed 4 July 2026