I don't know how reliable this is but one of Gersson's brothers posted a screen cap of an article on facebook. (We have mutual friends.) This is the only article I could find. It looks like it's just someone's speculation but sure could be a possibility. http://www.detroitbadboys.com/2014/5/13/5713248/gersson-rosas-profile-pistons-gm-candidate
I don't think these stats guys are so smart. I just think the guys who don't use stats are so dumb that they make the stats guys look smart. They're all overpaid IMO.
<blockquote class="twitter-tweet" lang="en"><p>Had extended chat w/ SVG. He is only interested in GM candidates who have had a GM job full-time. Limits the available pool.</p>— Zach Lowe (@ZachLowe_NBA) <a href="https://twitter.com/ZachLowe_NBA/statuses/468405783412355072">May 19, 2014</a></blockquote> <script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>