A buddy of mine once applied for a job and when he went for the interview, he was asked if he could do java programming. At that point, he had no idea but since he had other qualifications, he opted to buy a book on java and study about it while working for the company. He got the job.
You do not need to know everything to get to where you are going. You may opt to get more information about something that you don’t currently know about. Later this can help you improve your business. So, when making business decisions you need to worry less about what you have accumulated so far, but always opt to learn more in the process.
If we all waited for the traffic lights to turn green and the roads to clear before we can drive to work, we may never live home eventually.