Starbucks' ex-CEO, Howard Schultz, told Fortune he trusts successor Brian Niccol to revitalize the company.Niccol plans a back-to-basics strategy as the coffee chain faces low sales.Schultz, who served three stints as CEO, said there's no chance he'll reprise his role again. Sign up to get the inside scoop on today’s biggest stories in markets, tech, and business — delivered daily. Read preview Thanks for signing up! Go to newsletter preferences Thanks for signing up! Access your favorite topics i ...