Yet so far aswe can find, no one has carefully examined how these types of networks relate to one another. In our view, this is a serious gap in the network management literature, for it suggests that models are blinkered to the structural realities of the manager’s environment. In the next section, we present our findings from an inquiry into the structure and operation of a ‘‘policy-collaborative’’ network—orwhatwe will call a ‘‘network system’’—focused on the provision of ABE services in an eastern U.S. state