This can be a real problem in situations where you simultaneously work on two or more projects that have different managers. If they aren't part of an obvious c

This can be a real problem in situations where you simultaneously work on two or more projects that have different managers. If they aren't part of an obvious command chain then it can be hard to find someone who can make the prioritisation call. Resulting in extreme pressure on you if they refuse to back down. It is even more challenging if the two managers don't get on / actively work to frustrate the other. It seems very common in matrix-managed organisations where multiple command chains are the norm.