There is no single development, in either technology or management
technique, which by itself promises even one order-of-magnitude
improvement within a decade in productivity, in reliability, in simplicity.
The code you write makes you a programmer. The code you delete makes you a good one. The code you don't have to write makes you a great one.
It's better to wait for a productive programmer to become available than it is to wait for the first available programmer to become productive.
A happy programmer is a productive programmer. That's why we optimize for happiness and you should too. Don't just pick tools and practices based on industry standards or performance metrics. Look at the intangibles: Is there passion, pride, and craftmanship here? Would you truly be happy working in this environment eight hours a day?