Donald Reinertsen and Stefan Thomke at Harvard Business Review – Customers Don't Want More Features:
“Determining which features to omit is just as important as—and perhaps more important than—figuring out which ones to include. Unfortunately, many companies, in an effort to be innovative, throw in every possible bell and whistle without fully considering important factors such as the value to customers and ease of use. When such companies do omit some planned functionality, it's typically because they need to cut costs or have fallen behind schedule or because the team has failed in some other way.
Instead, managers should focus on figuring out whether the deletion of any proposed feature might improve a particular product and allow the team to concentrate on things that truly heighten the overall customer experience.”