A mobile app that aimed to deliver busy professionals personalized dinners and that had garnered funding from the likes of Kayak co-founder Paul English and DraftKings co-founder Jason Robins has shut down. CEO Michael Sheeley wrote in a blog post that it was difficult for the startup to compete in the hot food-delivery space. "We focused on creating more transparency into the existing supply of restaurant food and simplifying the ordering process for users," he wrote in the blog post."That just...