The Vikings have begun their first round of interviews for their open general manager position. They've also expanded the list of candidates. Bills assistant GM Terrance Gray was the first external name to emerge last week, and he was quickly joined by five others, who we detailed here . Now the list has three more names, bringing the total number of external candidates to nine. Add in Rob Brzezinski, the in-house option, and that's an even ten options to be Minnesota's next GM. Here's the case for each of the three newest men on the interview list, who were reported by NFL Network's Tom Pelissero on Tuesday night. The Vikings requested interviews with Lions assistant GM Ray Agnew, Broncos assistant GM Reed Burckhardt and Dolphins assistant GM Kyle Smith for their general manager job, sources say. Minnesota’s initial round of virtual interviews is underway and the list has now expanded.…