Heatherwood and Wexham Park NHS Trust were going through a period of significant re-organisation. This resulted in the creation of some critical leadership roles. Having developed their competency model we worked with them to design a tailored one-day assessment centre. We ran several events using a combination of internal assessors and our own assessors and delivered everything from exercise materials, assessor training, logistics etc. We also provided psychometric profiling for each candidates to support the assessment events. The assessment centres ensured that all positions were filled with strong candidates – some internal candidates were unsuccessful, but others were found to be so strong they were actually promoted beyond the level for which they had applied.