And? I suspect customers that asked you to, say, build a new inventory tracking tool that interfaces with their existing enterprise infrastructure (SAP, Salesf

And? I suspect customers that asked you to, say, build a new inventory tracking tool that interfaces with their existing enterprise infrastructure (SAP, Salesforce, etc) didn't ask you to do it in 2 weeks. So what was asked was probably -reasonable-. If it wasn't, you probably would have dropped the customer/left the company out of frustration. If it was reasonable, for a sufficiently fully featured solution that you COULD drop features and still have an MVP, then I would fully expect you to do so. That's PM Triangle 101; you can give on features while keeping cost and time fixed. That's just how we handle the fact that estimates are wrong, but we have to keep a date (we drop features, or bring on more people if the work is sufficiently parallelizable). This article is about the estimates being wrong.