After thousands of dealership visits, Jim Roche learned to look past the showroom. In a forgotten back office, he found the stubborn problem that became WarrCloud.

He began with an empty desk and helped build one company to a $220 million exit. At Numa, Joel Grossman is applying the same patient operating logic to the ringing phones, missed messages and frayed handoffs of the modern car dealership.

A stale recall notice, a list of 42 VINs and one profitable experiment sent a third-generation dealer back to the car business - this time to make the software disappear and the appointments show up.