https://www.nfl.com/news/vikings-begin-search-with-new-gm-request-interview-terrance-gray
This is possibly a Rooney Rule interview, but he seems like a legit candidate for GM.
First instinct would be that I don't want anyone in the Bills draft room and I don't want anyone who used to be in the Vikings draft room. However, it says he was with the Vikings as a scout 11 years prior to being hired by the Bills. Presumably that would mean he started in 2006 with Spielman until 2016 or maybe through the 2017 draft.
Anyway, the team did draft significantly better back then. In fact, between Harrison Smith, Danielle Hunter and Eric Kendricks, more defensive players drafted in those bygone years started games last season than all the defensive players KAM drafted combined did.