Starbucks doubles down on baristas, not AI, to fix its customer crunch

1. Starbucks invests in more baristas at US stores. 2. Hiring additional staff may boost customer experience and turnaround. 3. Competitors are focusing on AI, while Starbucks emphasizes human staff. 4. Previous machine solutions proved ineffective in speeding up service. 5. Shares dipped 7% after announcement of labor investment.