Fair enough. I was wrong.
The switching defense was as effective as the high pressure defense.
In a switching defense, instead of fighting over or under screens, the defenders simply trade men. Usually, teams will only switch a couple positions.
With Hawkins, Mayer, Melendez, Shannon, and Clark, Undie figured he could switch all 5 positions. Clark on the high ball screens was a weak link.
With Epps and Dainja they couldn't switch the high ball screen. I gather they usually went under the screen / drop coverage? Something that was not working?