NFL.com did one of these recently. They didn't rank anyone who was hired after 2016, except retreads Gettleman, Dorsey and Hurney.
And that makes sense to me, and I might have cut out anyone hired after 2015. It's kind of ridiculous to try to rank or judge a GM 15 months into the job, when there's no track record of his ability to identify talent, work the draft, make good decisions in free agency, handle the cap, or run a team in general, including handling personalities and building a culture.
Ryan Grigson won Exec of the Year in his first season. Not saying he didn't deserve it -- I think he had an outstanding first season -- but he didn't wind up being a good GM. He failed in a lot of ways by the time he got fired. And that took five years to happen.
I think everyone loved the Niners draft last year, and was ready to crown John Lynch as the next great GM. A year later, Solomon Thomas might be a bust and Reuben Foster is a disaster.
Three years ago, John Elway was the greatest dude in the league. Now, he's scrambling, failing on multiple QBs.
One year ago, Les Snead was on the hot seat and had just blown the #1 pick + everything they gave up to move up to #1 on Jared Goff. Now -- ironically also premature -- the Rams are being crowned as SB contenders.
If it takes three years to judge a draft class, shouldn't it take at least that long to judge a GM? Sure, there are some moves that can immediately be viewed as successful, and some that are immediately obvious as being mistakes. For the most part, though, it makes sense to just wait and see how things shake out. Instead, the common reaction is to lambaste someone the minute they do something we disagree with or don't understand. Like people ready to push Chris Ballard in front of a moving train because he wasn't signing free agents two days before free agency started.
To the OP, this being a poll of people in the business, based on their respect for decision makers, I get it. But I don't care what people think of the Colts GM, I just care whether he gets the job done. And we can't even legitimately talk about that for probably another couple years.