One thing I recommend founders to do is to think of the company as being a portfolio of projects, and the founder as being the strategic owner of this portfolio. Each specific product or service that the company is offering is a project in the portfolio that sits under the umbrella of the company. Then they can look at the maturity level of each project and the company itself. For example, a company that is offering a service to a customer base and at the same time is thinking of how they can translate that service into a SaaS product offering, may already have a good problem/market fit for the company itself, be in efficiency in terms of delivering the service and be just starting validation for the SaaS service.