Gary cares deeply about the program. That's why he was there. He wants to see Drinkwitz have success just like he wanted to see Odom have success.
Now, did he and Odom have a falling out? That's too strong of a statement. I know Odom reached out to Pinkel right after he was fired and gave him the news. They do keep in touch. Did Odom do or say some things in the last four years that got under Pinkel's skin? There was a lot of rebuilding talk from Odom in 2016-17. Odom changed a lot within a program that was well-established, which is not uncommon for a new coach who wants to make his own mark.
I think it would be smart for Drinkwitz to lean on Pinkel for some things, not in an official capacity, but ...
1. He knows football.
2. He knows Missouri's program and its potential.
3. He knows all the campus politics.
Why wouldn't a 36-year-old newcomer not look to that kind of resource?