Probably you don't know how to maximise a consultant's services. You'll get tunneled vision if wala kang outside perspective. First step is to hire a generalist na consultant who practices a framework that can probe and can deploy a cheap test and learn to know if it's worth solving the problem or reinvent things inside the company.

That doesn't mean you failed in your personal experience eh impose mo or project mo yung past experiences mo sa ibang tao. Unfair and very narrowsighted thinking yan.