Whitney Stefko Dover, holding a long piece of paper with a list of household tasks. Jessica Pettway for BI It's 4 a.m., and Whitney Stefko Dover's family "chief of staff" has already sent her the daily briefing. It's called the "Daily Dover." The early morning operations briefing helps Stefko Dover and her husband, Chris, coordinate their complicated lives with two young sons. An AI assistant scans their emails and calendar apps to map out the day ahead — school schedules, au pair or babysitter