Your Fundamental Shtick, Part 1
Two places where you wouldn't think having something solid and definitive would help you be more flexible are sales and fighting games. The key factor is that "aimless" isn't "flexible." To flex means to have an original state to return to. Without a guiding frame of reference, "going with the flow" means "being a subject of whatever other forces are around." Compare the two states to a sapling and a baseball: the sapling bends and grows stronger, while the baseball isn't even alive at all; merely getting thrown around by whoever chooses to pick it up.
A sale with a script is more powerful than a sale off the cuff. What matters is serving your prospect as effectively as possible, and a script keeps you on that track. In a fighting game, having a core strategy gives you an intuitive vision of how the battle needs to go. Removing the cognitive burden of judging an exchange individually, comparing it only to the strategy, lets you decide faster and strike harder. Having no underlying pathos beforehand means that what you get will always default to what everybody else wants in the moment.
Branding
This is also true for your personal brand (which you have whether you want one or not). You can be either a definitive "you" or you can be another face in a crowd. This is true in and out of business, but I'll stay on business for now.
Economies change, people change, and you're people; in an economy, no less!
Tomorrow I'll go into more depth on what means for you.