The man tasked with creating a plan to reform the nation’s housing-finance system said he’s leaving.

Economists at the National Association of Realtors prefer a public utility model for the GSEs; FHFA director touts the multi-guarantor approach. The trade group uses an appearance by Calabria as an opportunity to highlight the differences.

The new FHFA director tells Realtors what he will and won’t do for GSE reform. The keys: more capital, more competition, more transparency. The problem: The agency can’t do it all on its own.