The Cambridge dictionary defines momentum as a force that keeps an object moving in a particular direction.
Whether you are an individual or an organisation, there is movement involved. Somebody who is not moving, either physically, emotionally, intellectually, healthwise, professionally, and so on, has no momentum.
Momentum is not fixed in time and space. It is a vector, and as such, the direction in which we move is crucial. Your momentum can be positive or negative and can go up or down and even be reversed. It is affected by internal and external factors. So from time to time, we, like a car, need an MOT to ensure that things are most efficient and have a greater chance of successfully reaching our destination.
Seasons, people, systems, and ideas evolve. Often, we may be working like it’s summer when the season has changed to autumn. If the approach and mindset don’t adapt, momentum is lost.