Who is going to copy a Rupp workout, other than someone with no chance of using it to beat him (i.e. an American or European)? NOBODY of his caliber, let alone better, is going to steal his stupid training methods.
NOP needs to put down what it's smoking and admit it has failed - more than a decade in, none of its runners have achieved its goal. The only one that beat the east Africans was the east African. Its methods are not so great. Coaches with far less experience, money and lab tech have faster marathoners than NOP ever will. Only a fool would copy them or their silly "gray area doping" methods. Playing jokes on themselves with nonsense like L-carnitine injections, saline bags, etc. Running on grass makes you slower.