One can deal with ambiguity by standing by his or her own decisions. However, make sure that the decision is made after taking into account all those factors which directly impact the outcome. For instance, after making a company policy, one must ensure that everyone acts upon it. Similarly, evaluate the pros and cons of a new marking strategy before implementing it. Once implemented, stand by your stance and make periodic adjustments to it in order to gauge its true feedback.
Training is by far the essential practice through which one can deal with ambiguous tendencies. It is important for companies to train their employees, which allows them to enhance their skills, knowledge and expertise. Encourage your employees to trust their abilities and instincts to a certain extent, in order to make timely and crucial decisions. With time, the employees will be confident and willing to tackle difficult situations.
Create a working environment where everyone is willing to help each other out. Ambiguity usually arises from feeling of insecurity at your workplace. Create a working culture where everyone is asked to chip in with their own set of ideas and scenarios, which can then be combined to yield positive solutions and outcomes. Offering transparency and rewarding everyone for their efforts will not only enhance team spirit but further allow employees to feel valued and respected.