Less is more : Spot on, only the bare minimum should pass into the product. And it should be coherent to what already exists without adding any complexity. Which means, you will need to say no to the customer/prospect not only through sales but through all the channels you have for communicating with the end user, be it sales, marketing, support or product management.

Good Usability helps achieving #2.

Offering something dead simple and easy to use should always be the mantra.

Thanks!