yes if jenova follows the instructions properly
If he DID follow gh15's recommendations to the letter, and I mean to THE letter, I could see him improve day and night.
But that would never, ever happen.  gh could buy him all of the drugs necessary and give him a step-by-step program to inject, eat and train and 
Mr. Asperger's 70 I.Q., err, I mean, "Sith Lord Spaniard" would fuck it up royally.  "Do i drink this one hundret milliograms of trenobolone, Mister gh16, or do I have to put it in a needle and inject it?  I do knot want to get sickk b/c i am already sickening, sickining!!!!!  But if i have to in gect i will b/c i am hard kore, baby.  I want my pectorials to be bigger than Arnold's, bitch, so I'm gonna do another hater set.  You better watch out, babeeeee!!!!"
I'll give Genova this, if only by association:  his photographer seems to take shit more seriously these days and actually criticizes "big" Jason when he short-ranges shit or does half-ass sets.  He also doesn't endlessly kiss the 'tard's ass and egg him on as much.