Draymond is incredible. How many other players in the history of the game could've led the best team in the league in assists and won a defensive player of the year?
Could have?
Bill Russell, Wilt, LeBron, Pippen and Jordan come to mind. Kawhi perhaps. In 2 of the 100 perfect worlds Marcus could do it.
I would knock Kawhi off the list. Only once has he averaged more than 2.6 apg and had a career high of just 3.5 this season. Otherwise, that's pretty good company for Green to be in.
EDIT: Also, it's worth noting that none of those guys actually did what Draymond just did.
Well they didn't have the DPOY award until the 82/83 season and the award has most often been given to shot blocking and rebounding big men. Those players don't tend to be great passers.
That said, Gary Payton did win DPOY and lead his team in assists. The Sonics also won 64 games that year, of course that was the year the Bulls won 72. And of course unlike Green, Payton was actually his team's best player and the player most responsible for those 64 wins (11.5 WS to be exact). Green this past season was 3rd on the 67 win Warriors with just 8.2 WS. Durant in just 62 games had WS of 12 and Curry led the way with 12.6.
Going back to the 60's, Chamberlain led the league in assists one year and if they had the award and not for Russell, Chamberlain would have won multiple DPOY awards. He also would have led his team in scoring, rebounding, and blocked shots in addition to assists. Russell was likely never going to have enough assists to pass up guys like Cousy, KC Jones, and Hondo, but he was certainly capable of getting those assist numbers. I'm sure there are players in the 70's that also could have done it. Moncrief nearly did in the 80's (though the Bucks being the best team would have been a stretch). Artest had that sort of talent before the Malice. Jordan obviously won a DPOY and led his team in assists and was the best player on multiple teams that were the league's best team. He just never did all 3 in the same season.
Most of the guys were their teams best player, not a glorified role player like Green, which is why this really is a meaningless debate.