To compare one year against another, I think you have to at least take into account NCAA-wide scoring efficiency in addition to opponent defense.Not historically good at all?
Let’s leave efficiency matrices by the wayside and focus on raw points per possession then.
Illinois scored the most points per possession at 1.226 than any team has in the modern era (or probably any era; I just went back about 15 years and stopped). Edged out Purdue who was at 1.225 PPP.
In your UConn vs Purdue example, you’re only considering offensive efficiency. The reason 2024 UConn was so much better than 2026 Purdue was defense: Purdue 36th vs UConn 4th.
There has been innovation in metrics/analytics by coaching in recent years, but the difference between 2024 and 2026 is minimal, if one exists at all.
The raw, unfiltered, unengineered and unmanipulated PPP record of 1.226 belongs to Illinois (unless someone corrects me and this number had been topped prior to 2010 or so).
Edit: I wonder how much NIL-era would skew numbers for a team such as Illinois. We played our most aggressive schedule to date, coupled with the fact we’re saying talent now pools at the top. So although the median team may be slightly worse, aren’t we playing more top teams, and then also those top teams are better now then they ever have been?
Taking Torvik's Team AdjO divided by NCAA AdjO, Illinois was 1.206 (meaning 20.6% better than the NCAA average last year). I have data handy going back to 2018:
Year, #1 offense, #2 offense
2018: 1.229 1.181
2019: 1.192 1.186
2020: 1.187 1.180
2021: 1.232 1.222
2022: 1.199 1.189
2023: 1.183 1.169
2024: 1.213 1.195
2025: 1.224 1.198
2026: 1.220 1.206
Avg: 1.209 1.192
We were in line with most years' #1 offense, but not an all-time outlier.