Problem Solving Falls Short Some SaaS entrepreneurs first focus on solving a business problem, then executing it with a software tool, which they are eventually to put on the cloud. Industrious entrepreneurs will have already built a PoC - Proof of Concept - and push it to a few early adaptors, to see if indeed the product works as advertised, if customers' needs are satisfied. This, essentially, is the engineer's approach: Solve their problem, and thou shalt be saved... But