It is frustrating in a very specific way. The work is almost done, the client has signed off on the direction, and then someone new appears, maybe a manager or a business partner, who was not part of any earlier conversation and now has strong opinions about everything. All the previously approved decisions are suddenly open again and the freelancer is back near the beginning without any additional pay. Do you think this is something that should be addressed in the contract from the start, or is there a better way to handle it when it happens?