Although many researchers have stressed the importance of
vendor relationships, to-date there is very little research focusing
on multiple vendors despite the fact that many organisations have
multiple outsourcing contracts. A high degree of coordination of
activities is necessary if multiple parties are involved in providing
a service [46]. The QH case demonstrates an effective partnership
involving three vendors is a complex undertaking. Effective
coordination of multiple vendors was critical to the success of the
implementation. This is a ripe area for future research.