Late deliveries spiked in a market — what happened?

Diagnose a problemMedium

Problem. In one metro, the late-delivery rate jumped from 8% to 15% over two weeks. Ops is alarmed. What happened, and what do you do?

Before you reveal: say your answer out loud, as if you were in the real interview — get your reasoning across clearly first. There is no single correct answer: reading what the interviewer is really after and defending your own thinking is what makes an answer strong.