The rational approach presents a systematic and analytical point of view for managers to make decisions. However, the rational decision-making approach has been criticized and considered to be non-realistic; thus, it has been argued that this approach should be reviewed and made as practical and realistic as possible because the limited capacity of the manager is insufficient to analyze the complexity of business relations in the modern world and to completely clear up problems. It is also impossible to create a rational model for each decision. Time pressure, internal and external factors affecting decisions, ill-defined problems do not allow a systematic analysis every time. Even if we assume that managers have the cognitive capacity to solve each problem, they cannot evaluate every problem and every alternative.