As a very casual Jazz fan, my observations are just that...
a) Defense/defensive performance versus the Clippers was terrible.
b) Live by the 3, die by the 3.
The Clippers solved the Jazz in game 3 and never really looked back. The Jazz were only competitive after that when they were hitting lights out from 3. I'm sure there is more to it than these factors but by and large that's what I noticed.