Ok? The point is his entire career he's been a positive defender. Maybe, just maybe, being on the Jazz (who explicitly said coaching defense was not a priority) might have been the biggest contributing factor, not John Collins playing.The Jazz could trade Walker today and I'd still have the same opinion.
You mean when he played the 4 beside Capela at the 5?
Yes, when Walker played the team was dramatically better in defense, because that's the only reason Walker Kessler is in the NBA, to be a defender.