This may be of interest - commentary on Mid Essex Hospital Services NHS Trust v Compass Group UK and Ireland Ltd (t/a Medirest) [2013] EWCA Civ 200 (15 March 2013), which Colin noted for us soon after it was published.

As you were! Duty of good faith not implied into English law contract.

Mark Anderson, IP Draughts, 22 March

"The case was fascinating for the light it threw on how a hospital procurement manager behaved in a “challenging” manner with a supplier of catering services.  The contract included a provision for “service failure points” – effectively fines – for non-compliance with service standards ...." (more)