Purely my opinion, but evaluating coaches on the basis of how far they go in NCAATs I think is tough because it is such a random postseason format which I think gets more random by the year (lots of parity in college basketball). Until last year, Cal actually made NCAAT runs more consistently than maybe anyone else. His performance in NCAATs from 2010-19 is outstanding.
I think a better metric for success for a CBB coach is how consistently is that coach getting you good seeds in NCAATs, which maximize your chances to make NCAAT runs. 2 out of the last 3 seasons, Cal actually hasn't been great at that. They were awful during the COVID year and missed the tourney entirely, and this year had an up-and-down season resulting in a 6 seed.
Coach A is in the tournament every year, often at a high seed, but frequently gets bounced too early. Coach B isn't consistently in the tournament, but when they they do make it it seems like they always advance further than you'd think. In a vacuum, personally I think Coach A is better than Coach B but I think most CBB fans would see it differently.