[hga]

Sounds like you're measuring input rather than output, an all too common failure of software development management. There's a rather good chance the experienced pro with a life is several more times efficient than the "young kid"; I certainly know that e.g. after 20+ years of programming my skill at debugging became almost frightening. Or after 15 years how low my error rate became and how good my designs were (best metric: accommodating totally unanticipated requirements).