60 years many things can change. But for the CTA, after 60 years, things are still the same. Many Tibetans in exile are still living in poverty, the free Tibet movement still remains as status quo, the Tibetans are still refugees. The CTA is good at not making changes to anything.
China on the hand has built a railway and highways linking other cities in China with Tibet, they have modernised Tibet and improved the lives of the Tibetans tremendously. Tibetans in Tibet definitely live more comfortably than those in India. Many Tibetans are now regretting coming to India, including the Karmapa Ogyen Trinley.
The CTA has not groomed any talent among the Tibetans for the past 60 years. It is not that the Tibetans are not bright, but the CTA just doesn't bother to do that. Look at those Tibetans who receive education and nurtured by the non-CTA system, they can excel in the area they choose to, many of them are very successful. The CTA is selfish and self-centered, they are not reliable at all.