Recent Article That graph looks completely incorrect. Looking at the website below, I come up with an average salary for any title with "coach" of $46K in 2017. The average head coach salary is $92K.
https://ucannualwage.ucop.edu/wage/
Edit: I emailed the author, response below:
"I pulled the salary data of the coach directly, through the state’s Transparent California portal. As a coach, with benefits, any bonuses, and other income, he made that $237,000.
Also…our example was for the Sac State coach, not UC.
The “average salary” system takes into account salary only. It does not factor in other wages or benefits. Added to that, it’s the average across all the coaches. Not just from the singular coach. It’s not uncommon for these systems to pay benefits and other wages on top of salary for the remainder of the contract. Not just for Sac State but all schools. It’s been done across the state and the NCAA."