Not so. The Single Sky doesn't envisage a single provider - and certainly not Eurocontrol. The 'network manager' that everyone is talking about will be an enhanced CFMU, essentially Eurocontrol will be an expert body providing guidance and coordination to member states, who retain sovereignty over their airspaces but function within the 9 'Functional Airspace Blocks'. The political clout, imposing and enforcing performance targets, will come from the EU.
That's the theory, anyway.