Claire Trevett: NZ Herald political editor on Police Commissioner Andrew Coster's move to the Social Investment Agency - The Sunday Session with Francesca Rudkin

Police Commissioner Andrew Coster has made the switch from top cop to head of a new Government initiative.

Coster will depart the role early in November - and take over as head of the Government's new Social Investment Agency.

 NZ Herald political editor Claire Trevett says Coster tried to muscle along following the change of Government last year - but he didn't quite click with the new Government.

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