Amazon.com Inc. (NASDAQ:AMZN) has introduced a new return-to-office mandate for its corporate staff, requiring them to be in the office five days a week starting in January. However, its subsidiary One Medical has been given a different directive. What Happened: One Medical informed its employees earlier in September that they must start coming into the office three times a week beginning in October. This timeline allows over a year for employees to adjust and relocate if necessary, reported Business Insider on Tuesday, citing people familiar with the matter. Most One Medical employees will ne…