Former Chipotle CEO Brian Niccol is now officially chief executive of Starbucks. He's tasked with turning around the coffee giant, which has seen same-store sales shrink over the last two quarters. To stage a comeback,

We caught up with three experts to weigh in on what leaderships lessons Brian Niccol can apply as he takes over as CEO of Starbucks.

It’s the first day on the job for new Starbucks CEO Brian Niccol. After spending the past six years helping Chipotle recover from a food safety crisis and reimagine its digital ordering strategy, he’ll try to add a jolt to the struggling Seattle coffee company.