I've been a booster (small level) at Cal for a number of years. The coach's focus there has almost always been fundraising, because the program re-started from club status with a mandate that they had to raise their own funds.
The genius of Steve Desimone (recently retired as the coach) was his decision and ability to get recruits in a five-years to play four system, which has allowed those who want to to pursue Bus Ad degrees at the Haas School of Business, as both Collin M. and Max H. did. That has made Cal's academic reputation a selling point for golfers, where it is a non-factor or even a difficulty in the revenue sports. I suspect that what Steve and Walter Chun, the current coach, excel in is helping their players navigate the balance among school, golf and life while there in the program, which helps them down the line whether they play professionally or do something else.
I would also note that golf may be among the most difficult sports to balance school and play, because it is one of the few sports that plays in both fall and spring, meaning there are always issues with missed classes, doing assignments on the road, etc.
My impression is also that neither Des nor Walter have ever tried to provide instruction to players, unless specifically requested, because most of their recruits already had teachers. The leader of Cal's 2004 NCAA championship team was Peter Tomasulo. His teacher was Jamie Mulligan at Virginia CC, one of the best teachers most people have never heard of. I know both Des and Cal have helped players figure out where they needed instruction, and where to get it.