Say, you take a car to travel from A to B and the journey is fairly long. You make a stop and park after some time – to freshen up, walk a little, have a meal or spend the night at a hotel. Does it feel bad to be in a parked position? Does it feel like you are wasting time and should continue without a break? Do you need to justify that more resources are necessary in order to continue? Of course not! It is so obvious! So remember to feel natural whenever a project flow is parked for a while, right?