has stated that explicitly — The NET is used primarily to measure the quality of the teams you have played.

Indiana State had a NET of 28 last year and got left out. They used different logic this year to keep UNC and having their AD leading the committee is not a good look.

Memphis - 6-1 in Q1 games which is why they are a 5 despite a mediocre NET

WV - 6-10 in Q1 games which is why 117/117 bracketologists had them in the field.

UNC - 1-12 in Q1 games! They have one relevant win and it was in December. Every other chance they had against a tourney team they lost.