This is a very simple question to answer. If the business is tangible, then the best way to handle matters is to take the business and use Bitcoin trading as per time. With unsteady movement of Bitcoin, one can't just jump into it full-time.
Yes, at every point in time there is one thing they call diversifying, and one way or the other, you may need to adjust some things, to be able to take a full advantage of everything you have planned out. Business is a good thing, and trading as a profession can be a business too.
Nonetheless, this does not restrict anyone to just trading alone, as there are so many other things you can still as well do outside trading as long as you are knowledgeable in all of them. Everything about business is a trade and you need to be skilled in that trade and the same thing applies to trading the market as well.