And, none of Taco's attitude manifested itself in any of the interviews or vetting process that you would expect for a first round pick. Yes, I know there are mis-fires, but this still seems a bit odd.
People are on their best behavior for interviews.
Many people are great for a period of time after they're hired but certain people will always morph into their natural ways unless their bosses can somehow steer them in another direction.
Think about coming out of college from having no money into getting paid over a million per year.
I've seen guys just out of high school get a job for a little over minimum wage and they suddenly thought they were king of the world.
There were some questions marks in scouting reports about Taco's maturity but no true red flags.
The Cowboys likely waited too long to really discipline him. He should have bee inactive the very first time the coaches were not satisfied with his attitude/work-ethic.
Doing some google searches, there were harsh comments from Marinelli back in 2017 in the OTAs/training-camp time frame with regards to Taco with Marinelli saying "It's not good enough" when asked about Taco's progress. That seems more harsh than the normally silly antidotes that we hear from Marinelli when asked those types of questions.