And his consistency popped from mediocre to competent in 3 weeks. So there you have it! A 26 year old getting bat, bowl, fielding and keeping nets with 5 sports psychs can really rush through. According to my research, just bowling and fielding nets will yield in 5 weeks.
It was mostly for sheer interest, but if you have a middle aged player with secondaries that leave you wanting and you don't have a lot of young players to train, I suggest you consider this tactic. It might actually be particularly useful if you are able to purchase such a player cheaply.