I think the answer to your question is yes. But your extended question means this was not the question you actually meant.
This viewpoint is somewhat more Epicurean than Stoic.Turning toward what is properly your own and not not wanting what you need not be concerned with are central principles for Epicurus. Not setting goals about things only partially under your control is a matter of restraining your desire. Epicureans suggest withdrawing from the things over which you lack control and focusing on desiring what is appropriate. If your understanding of your own nature is proper, the theory goes, you should naturally wish to control just and only those things that it is natural and possible for you to have an effect on -- we are not designed to be destroyed.
I think this can be applied to any situation. You cannot pursue success in business. That is a complex phenomenon over which you have little control. But you can choose important goals that you would like to introduce in the world, and know their value. If success does not follow, that does not matter, because other's opinions of your work is one of the things you should know better than to want to control. To the extent your sense of value is correct, and truly shared with other people however, you will be successful despite focusing away from success itself. (A good Epicurean has a lot in common with a good Taoist.)
Stoics would consider that not very reasonable, and far too trusting of reality. Even when you think you have even partial control, you do not. Every action has a component of fortune to it, and that fortune can turn the smallest crack into a complete lack of control. Trying to estimate what degree of control you have over one thing or another just leads you to become attached to those estimates, and to be left off-balance when they are incorrect.
The Stoics take more the approach of doing the proper thing even though you do not have control over any outcome, and being able to tolerate a wide range of outcomes through personal strength and faith in the propriety of your actions. Seneca, a very prominent late Stoic, was a Senator -- his goal was obviously not to avoid trying to control things. But he proposed one could persevere through the horror that was Roman politics by not allowing oneself to be hurt by failure or to become attached to one's successes. That seems quite as directly applicable to business as it was to politics, these two being very much the same games with different score-keeping. (A good Stoic has a lot in common with a good Confucian.)