Amazon CEO Andy Jassy's decision to force employees back into the office five days a week beginning in January will likely reduce productivity, one analyst warns.

Andy Jassy's bland letter, steeped in corporate-speak but making it clear people will be going back to the office five days a week, is a great example of how not to motivate your staff to push your business forward.

More than 95 tech companies in the U.S. still allow some extent of remote work. Amazon’s abrupt shift could change that.