Excellent article. I've worked in product companies ranging from startups to the top 5 over the years, and also spent a few years in consulting organizations so I can really appreciate the insights here. Product companies (in general) create cost centres while consulting companies are profit centers. So the attitude toward cash flow is quite different. Consulting companies tend to "invest" their money while product companies tend to "spend". What else, product people tend to take their time to build things that they feel the customers will need, instead of building exactly what the customers need. Sense of urgency is a trait that a product company can learn from the consulting business. Consultants work with customers directly and they always possess domain knowledge learnt from experience while product people rely on research to pick up a subset of the knowledge. Imagine the power of a large product organization that can run more like a consulting organization!
There was an excellent talk on this same topic this week at the Open Source Bridge event in Portland. The topic was "No, I Won't Contribute to Your Open Source Project". Slides are available. http://opensourcebridge.org/sessions/957