Running a business will require you to be hands on all the time. You need to look after it and continuously find ways to know everything that goes on within it. If you closely monitor how your business works and operates and know even the smallest factors that can affect it then you make sure that your business continues to grow and improve over time.
Even if you let trusted individuals manage your business, if you stop looking after it then there is a big chance that it will be in trouble. It is still important that you, as the owner, be very involved with how the business is run. After all it is your business and it needs to suit your management style.