Every startup/SmallCo I worked for seemed to fall into this trap. Sales finally finds a BigCustomer, and the company instantly transforms from a product company into a custom engineering contractor for BigCustomer. We're no longer building our own product vision: We're cramming everything BigCustomer is asking for while they hold a carrot tied to a stick in front of us. We no longer have a general product that can be sold to anyone. We have BigCustomer's wish list and they still haven't bought more than a handful of units.