External environmental sources -Rate of market growth -Number and type of competitors -Nature and degree of political/legal constraints Organization's characteristics -Size -Age -Culture Manager's characteristics -Interpersonal skills -Tolerance for ambiguity -Commitment to the firm and its desired strategic outcomes A. The 3 major categories of factors and 3 sub-categories of factors under each of the 3 major categories affecting managerial discretion in terms of making decisions and taking actions. B. From a strategic perspective, why is it important to understand those factors? Be specific.