Your article about diplomas (TES, March 2) is clear evidence of good management practice. At the Qualifications and Curriculum Authority, we have engaged with our partners to identify the issues that need to be addressed and the potential risks that must be managed. The "issues log" is an instrument we have constructed to manage delivery. The diploma is one of the most important education reforms of recent years and we have been working closely with our partners to develop it.
Ken Boston Chief executive of the Qualifications and Curriculum Authority, London