“…But they suggest that, if the networks are to become a significant improvement strategy for all the schools involved, they will need also to become rather more rigorous arrangements. They voice particular reservations about the suitability of networks as improvement vehicles for schools facing challenging circumstances, pointing out that, in planning collaborative arrangements for such schools, internal capacity (Stoll, 1999), internal structures and practices (Potter, Reynolds, & Chapman, 2002), and particular external factors (Muijs, Harris, Chapman, Stoll, & Russ, 2004) would all need to be taken into consideration. Chapman and Allen (2006), in a report for the Specialist Schools Trust, concluded that targeted, collaborative approaches to support the development of a specialised school system were proving highly effective.…”