In 24-25, Todd Golden made 3.6 million. BB made 3.5 million. One of these coaches won a natty. The other lost to a lower seeded team in round one of the NCAA tourney. Maybe salary isn't the best way to measure expectations.
Irrelevant and immaterial. You cannot compare coaches or situations and sports are businesses where salaries are market based. Look around at salaries of coaches in the various sports and you will understand that they are based on what the market bears.