In this articleSBUXPeople seen around the Starbucks coffee store in Shenzhen, China.Jakub Porzycki | Nurphoto | Getty ImagesOn Starbucks' fourth-quarter earnings call, newly installed CEO Brian Niccol told investors he needed to spend more time in China to understand the challenges.The company's same-store sales in the country plummeted 14% as foot traffic and the average spend per customer fell. Niccol told CNBC's Andrew Ross Sorkin that he plans to visit the country the first or second week of December to ...