I can provide you an interesting analogy that may (or may not) resonate with HN readers:
It turns out that hiring a guy who's an expert at optimizing I/O systems for databases, to optimize your massive multimedia streaming farm, doesn't usually work. Because one is hyper random access and the other is massively sequential, also typical block size for one is probably measured in K and the other typical transaction size is probably measured in G. And there's certain latency consideration. And probably others.
The real question is if costco is successful, why are b-schools charging $100K to churn out cookie cutters that don't cut it in the real world?
If costco were swirling down the drain, AND simultaneously rejected "MBA culture" (or HN culture, or 4chan culture, doesn't really matter) then it wouldn't be much of a story. The question is why MBA schools, despite all the worship of their holy paper credential, can't graduate people who apparently know anything about retail, or at least don't know how to be legendarily successful in retail.
It would be like a med school that charged $100K but simply decided to not teach their students anything about biochem and then no one seemed to care. "Eh, blood sugar and electrolyte levels, eh, that stuffs hard, lets skip it and do some extra anatomy studies". Or in engineering, "Well, I never really liked finite element analysis and you'll probably not be expected to successfully do it on the job, so here's a engineering degree anyway and best of luck to ya". And no one cares other than a successful, yet fringe industrial company, who doesn't hire eng school grads to do finite element analysis.