People anticipate outcomes based on their favorite criteria.
For some it is how fast it is achieved or how easy it is to achieve it, others want it to be exactly as they imagined it, and yet others want it to end on a happy note.
They’ll try to tweak the results or how they get there according to these expectations.
The interesting detail is that most have forgotten that it is an expectation. They do the tweaking because of their expectations. In doing so they widen the gap and create frustration.
Other approaches would imply naming the expectations from the start and measuring how well the expectations match with the unfolding events. It generates a learning curve.
Another approach is to simply measure how things unfold and be curious about one’s reaction to the development of events.