Along with my previous definitions it is important to note that too much stress can have a negative impact on group members. Although a stress may promote some to rise to the occasion, it may frighten away other members in fear that they cannot meet this challenge. There is a difference between stress and challenge; it is necessary to use them carefully in order to maximize work output and not cause a shut-down of the higher brain functions, which will lead to complete failure.
Goleman, D. (2006). "The Sweet Spot for Achievement." Social Intelligence: The new science of human relationships (pp. 267 - 284). New York: Bantam Books.
Along with previous entries, it is important to realize that there are often times more than one correct answer to a problem. It is necessary for a leader to be able to make these difficult decisions without becoming overly stressed or feeling like a bad person. However, when it comes to legal matters they may only have the option to choose the right and legal answer otherwise they may put their team/company in jeopardy if they choose mercy over justice in those situations.
Kidder, R. M. (2003). "Overview: The ethics of right vs. right." How Good People Make Tough Choices (pp. 13 - 29). New York: Simon & Schuster.