Coaches should have attire rules for every game, not one or early season tournaments

I was watching some basketball games today and I noticed Jay Wright of Villanova and Matt Painter of Purdue out of Attire and it caught my attention. I thought coaches were supposed to wear Suits, shirts, ties, the whole nine yards.

If I was a coach or in charge of a College Basketball Program, I would have the coaches wear suits, the whole nine yards. If they played in a pre season tournament aka: Puerto Rico, Orlando, Maui, Cancun, I agree with the Coaches shirts and not the suits.