Verkhoshansky argues that traditional periodization (changing everything every 4 weeks) fails because you lose explosive speed (5-day retention) long before you lose endurance (30-day retention). Therefore, you must sequence your "blocks" based on the RTEs of the previous block.
A fascinating piece of sports history mentioned in Verkhoshansky’s records is how the Shock Method Supertraining Yuri Verkhoshansky Pdf 33