W.Blake Grey is the US editor of Wine-Searcher who recently wrote an article stating that no wine has improved more in recent years than Nobile di Montepulciano to the extent that it has become an excellent alternative to Brunello di Montalcino.

The reason for this sort of revolution lies in the choice made by many producers to increasingly emphasise Sangiovese and native grape varieties, abandoning international ones such as Merlot and Cabernet. A philosophy that has always been followed in the production of Palazzo Vecchio wines.

That the Consorzio del Nobile and many producers are at the forefront of choices regarding their future is testified to by the monitoring of the territory through weather stations, the commitment to limit CO2 emissions rewarded with the awarding of the Equalitas mark for sustainability, the proposal of a new wine with a particularly selective specification and the definitive distinction from Montepulciano d'Abruzzo through the Toscana brand.  

That Frescobaldi then bought a major winery in the Nobile area seems to be one of the many signs of a change taking place.

Sources:
https://www.wine-searcher.com/
https://www.gamberorosso.it/