They tell you want tools they want and then do what you think is best. But don't understand why they really want tool x. Tool x does x and y but the case is m

They tell you want tools they want and then do what you think is best. But don't understand why they really want tool x. Tool x does x and y but the case is made around x. You combine x request from different users and create your x solution never knowing about y and y is the main reason they want the tool.