I think there is a bit too much comfort being drawn from last night's win. Duke trailed for a large majority of the game. A similar performance against a top 25 team most likely would have been a loss. A road loss to a top 25 team is ok if you're a top 25 team. It's not ok if you're a top 5 team.
The data and eye test say the same thing - our offense is our achilles heel. As mentioned last week in this thread, our two best individual defenders are Brown and Cooper. Tyrese has the highest OBPR and is a very solid defender. Sion is relatively strong on both sides of the court, and Kon is also solid, with surprisingly acceptable defense and our best distributor. So a lineup of Brown, Cooper, Kon, Sion and Tyrese seems like it's our best. But it doesn't appear to be.
Looking at our best lineup combinations (2-man, 3-man, 4-man, 5-man), one name is conspicuously missing from every single lineup: Cooper. I think we saw why when he sat - our defense remained elite and our offense looked much smoother. And there are two names that are in every "best lineup" combination: Kon and Gillis. I mentioned Gillis upthread, the analytics really really like him.
It seems pretty clear the staff wants us shooting a lot of 3s. And frankly, it doesn't appear we have an offense to speak of so shooting 3s may be our best bet. In that case, how do we get to 30%+ of our possessions ending in a 3P shot efficiently? To me the answer is Gillis and Evans. Gillis because he is a proven sniper, and Evans because I think he's the only high-volume 3P shooter who can shoot 38%+ this year.
I don't see Kon as a high-volume, efficient 3P shooter. He's at 33% and if you remove the first 2 blowout games, he's at 27%. And I don't think that's a fluke. Senior year he made 39% of his 3s, about the same as Cooper. From the research I could find, there's about a 7% decrease in high school 3P% to college, which would put Kon at 32%. His FT% shooting is elite (including 85% his senior year), so I expect in the NBA he has sniper potential, but I don't think he'll realize that this year.
I'd like to see more of Evans and Gillis, see Kon be more selective on 3s, and the staff needs to figure out how to keep Cooper on the floor without killing our offensive spacing and flow.