What they talked about had different formations or different players in different areas of the court for the same signal. It is available to see on a recording. I doubt any coach goes into the exact tweaks that take place on an interview for fans, but you can see the different formations for the same signal in the video. One could make an argument it was a combination. You describe a zone and I'll show man morphed to look the same. In every man defense lies a zone and in every...well almost all we see of zones lie a man defense. Pure Zone is defending an area which may or may not have a man in the area. Man defends a man, but maybe not "hugging" the man he is defending away from the ball. That area where you are defending a man but not on him is what? Both share similar desires.
In every non trapping zone there will be an attempt to defend the ball with man principles. In every man defense there will be zone away from the ball. Almost all the defense you see are a hybrid of a pure zone and a pure man. When AJ or Zach lays in the lane not defending anyone he is in a zone inside the man defense that Purdue plays. They really can be tweaked so close that someone can call one something and the other call it different.
The whole match up zone starts out in a zone and then matches to players in their areas. Those players hand off the player they were defending as they leave their zone area and pick up a man in their area or close to their area. The whole purpose of the matchup was to place people defending their men in areas of the court they would be better in defending rather than defending their men in areas maybe they were not as good defending. Defending men...defending areas all in the same defense. Some tried to do this switching horizontal, but not vertical screening to keep players defending similar players to who was switched. Or add switching 1 through 4 or 5...are those players defending a man in their areas...how different is that than a match up zone? The old zone or old man you don't see anymore. Everyone or everyone I see in college play a hybrid, but I don't watch as many different teams in other conferences as you do.
So I wonder if Purdue players not on the ball move a step away farther (defending an area?) from how they would normally play one pass away...or even two passes away. If that happens and the sag is not directly towards the basket on the imaginary line, but more on an angle then I say they applied more zone to their man. If the sag is directly to the basket from the imaginary line I say they applied more adjustment to their man...but another could say they are now defending an area and so it is a zone? A lot of nuancing in verbiage to describe trying to protect an area away from the ball. After a pass, different zones look the same because they are trying to protect and area with the shift of a ball and/or player.
Even today when forum members say so and so didn't guard Ethan...was that team in a man with one player in a zone or was that player just sagging off while in man. When Jaden drove into a bunch, was the other team that clogged the lane in a zone or man? These teams always use a bit of both zone and man in their D, but what is their lean. Anyway, I may be nuancing it a bit for some, but I do see a difference...even if the difference seems small. That said I do think there will be a wrinkle in the D tonight..."if" Purdue is struggling