How could you increase the probability of success? There are several ways to try and be sure that the improvement you have chosen is the best one for your enterprise and that it will work:
before starting, consider alternative solutions and see one suits you best
try your ideas first in a small way and see how they work for example, before you decide to relocate a whole row of sewing machines in order to take advantage of light from windows, try it first with one machine and evaluate the results
observe a similar change in the same conditions in another enterprise, it is always better and cheaper to learn from the mistakes of others than from your own
get the advice of someone who has experience in solving similar problems this is especially important when your enterprise is trying to solve a problem for the first time