It’s not just Walsh albeit I think he takes the brunt of the finger pointing because he is the loudest in the room.
To me, he is one of those coaches that does less with more. I don’t think people realize that he is one of maybe 5 coaches who is in play to get any kids he wants. I’m not saying he does but rather that when there is a stud athlete out there, Serra is a real threat to reel him in. Sure, everyone will point out that he’s been to a few SBGs but when you get pretty much whoever you want, that is not saying much. It’s like saying Bill Gates has one of the top 5 most impressive homes in America……..yeahhhhh, he is supposed to. He’s got more capitol at his disposal than most lol.
Reality is that some of the best coaches out there have probably never been to a state bowl game. They likely don’t get the type of talent they need but get the most out of what is one campus.
From the list you named, the only coach I feel is truly a great football coach is Jason Negro. Let’s face it, Alumbaugh inherited the De La Salle name while Rollinson and Walsh have only been head coaches at private schools where is easier to attract too talent. Negro won at Trabuco Hills, then went to SJB where he could recruit and attract top talent and pimped the mf out!