Here are three good reasons why you need a strategy in order to succeed:1. There are no bad ideas. And since there are no bad ideas, you constantly have to evaluate and choose from among all the great opportunities that present themselves. Is television good? Of course. Is televisions a good use of our budget at this time? Well, if you have a strategy, it's pretty easy to answer this question. If not, it is impossible. And marketing resources get frittered away on the best sales pitch, the best sales person, the best buddy, the fire-sale promotion of whatever's in…