Decisions should be rational, which means derived from reasoning and being logical. Rational decisions must consider the alternatives. Rational decisions must be based upon a set of criteria and forecast some future condition. They must consider the resources available and the impact they will have on future resources. There are six areas of rationality consider when making rational decisions.
Most decision makers satisfice the decision.
Satisfice not the best choice, but good enough. Managers have little time to devote to decision making so they will take good decision, not necessarily the best. Most decision makers just muddle through the process. Instead of making bold changes they do little, easier, less controversial changes. Decision makers steer away from strategic planning because it requires too much change.