Foursquare’s Longtime Head of Product Leaves, Midway Through a Huge Product Rollout

Foursquare is saying goodbye to its product head, a longtime employee whose ties to CEO Dennis Crowley go back many years.Yesterday, Crowley told employees that Alex Rainert, who was the mobile discovery app’s 10th hire, is leaving. Crowley is also reorganizing his product team, and will split Rainert’s …