Once schools have begun to collaborate, the first realisable benefit is the opportunity to make use of a strength in numbers and in economies of scale. Clusters can commission services from a variety of sources. The obvious partners are the different agencies represented within the local Childrens Trust and who are charged with and funded for the realisation of the requirements of the local Childrens Plan. Schools need to know what they need and to express this clearly. Other potential partners can include Universities (for Masters and Foundation Degrees), Providers of Initial Teacher Training (for specific subjects and year expertise). Some clusters have successfully commissioned ICT solutions. Charities and other representatives of the Third Sector are also potential partners. Bartering with neighbouring clusters is another possibility. The opportunities are there.