Starbucks (SBUX) is firing 900 workers as a part of its restructuring plan for underperforming stores. Investopedia's Caleb Silver says CEO Brian Niccol's focus on the future hasn't worked yet, noting same-stores sales remaining on a decline paired with lackluster stock growth. Caleb points to upstarts like Dutch Bros. (BROS) and added pressure from well-established competitors creating more headwinds for Starbucks.