Rapid delivery startup Food Rocket is packing up its Chicago headquarters after just a year as it moves all resources to a new priority market. The scrappy startup, which promises doorstep delivery of convenience staples in 15 minutes or less, was founded in the Bay Area and moved its headquarters to Chicago a year ago. Now, the company is ceasing all San Francisco service from its non-consumer-facing storefront as it moves its headquarters to Charlotte and redirects most if not all of its Midwest...