* They didn't do austerity. The whole low taxes run the place on a shoestring wasn't the game. Carmel did not do extravagant government buildings until they were affordable, and paid for by the development around them. For a long time city hall was almost a re-purposed dentist's office.
* Carmel did not invest in poverty. Carmel pushed it out of town. Now it is extremely wealthy per-capita.
* People laugh at the sheer number of roundabouts, but those have had a huge effect on public health by reducing both the frequency of accidents and more importantly, most accidents are now lower speed with less damage to life and property.
Yes, Carmel took on a lot of debt. Yes, they invested that debt heavily in making Carmel a nice place to live and work. jim Brainerd, the mayor, knew one thing the article missed: if you are growing, the tax base is always expanding. Carmel was also extremely long-game focused on development: as bonds mature, tax abatements and incentives expire in a way that will enable rapid retirement of the debt.