There are two men standing next to a large machine

I need to create an image showing an analogy with the following conditions: background with industrial references where in front there is a bench with four feet where each foot is represented by a pillar of the process, utilidades, equipamentos, Tooling and raw material. On top of this supposed bench is a character standing, This represents a machine operator with the ultimate goal of changing the lamp. When all feet are in balance the operator does not need much agility to stand and change the lamp, But when there is an imbalance of one or more feet this character needs some kind of agility to keep up and foot, How many feet are shortened, showing the deficiency of the respective processes, the end goal becomes impossible;.