You and your team need to understand when expertise is an advantage and when it is a disadvantage. This all boils down to the industry norms you’re calling into question and whether or not key dynamics have turned such norms upside down. Rather than believe you can just “do it better” than your incumbents, anchor your thesis on what you believe everyone else is wrong about. More important, your team must value the benefits from sticking together long enough to ramp up expertise, gain velocity, and allow a long-term thesis to play out.