With little chance of GSE reform legislation passing until 2016, Fannie Mae and Freddie Mac will continue to experience employee turnover as well as infrastructure upkeep challenges, say experts. Speaking during a conference call sponsored by GSE shareholder rights group Investors Unite this week, Matt Seu, principal with Actualize Consulting and a former Freddie vice president, warned that six years of government conservatorship have taken a toll on the institutional memories at both companies. …