Dellavedova if he was listed as a PG he would rank 32nd, on the list.
Not sure if I buy the into many of those stats and how accurate they are.
Lillard is a good defender when Wes Mathews is on the floor, he isn't as effective when Mathews isn't. There are some players that make others a lot better. LeBron and Magic have the ability to make others better. Billups was another player that could do that.
Defensive rating stats are highly irregular and only meant to be a barometer. They're ballpark, imo though. Dellavedova is:
1. Has picked up the intensity.
2. Refs are allowing him to get away with some stuff.
3. Curry has went cold.
Lillard's just not a good defender. He's about as bad as Rondo. But yes, a good backcourt mate can mask a lot of defensive deficiencies. Rondo didn't look so bad til he went from Avery Bradley to Monta Ellis.