Re: Old school training routines seem to be the simplest and most effective!
I see what you're saying, but when it comes to the elite it isn't really a case of 'what works', it's a case of what 'what is closest to optimal' and often a boxing coach alone doesn't have physiological understanding to impliment training methods that are appropriate to the situation. BUT, what is optimal from a purely mechanistic standpoint may not be optimal for a certain individual; it's very situational.
A lot of boxing trainers are ignorant though unfortunately:
"Coach, I've been doing *insert beneficial training method*"
"Na **** that, just run every day"
What is lost in most of these discussions is context and as I mentioned, it often results in huge generalizations.