Question

Gregory was talking with kareem, his assistant manager, saying, "when i make a decision on which employees will do a project, i use three simple factors, which i call my decision-making 'rules of thumb.' i consider their attitude and knowledge, and how hard they work."

Answer 1

Gregory's rules of thumb, which he uses in decision making, are known as heuristics.
Heuristic refers to a solution to a problem - it is something you employ in order to achieve the best results possible. These methods you use may not be perfect, but they will help you do what you intended to do properly.