However, when the star players of a soccer team or a basketball team are off the game or fail to implement their chief coach s strategic intention, leaving the whole team in adverseness, the coach faces the choice whether to substitute he/she or not. No doubt substituting a star player with a bench player means taking risk because the bench player may not perform as good as the star player and may make matters worse. If this happens, the substitution will incur discontentment of the players and critique from the team s fans, media and the boss. The capability of the coach may then be suspected and he/she may even be fired. Nevertheless, if the coach dares not to take the risk to substitute a poorly performed star player, his/her team will probably lose the game. Taking chances and risks is reasonable when one is dealing with something that has not been taken into consideration previously. So, in competitive sports, planning and risking are both necessary.
In academic fields, careful and cautious planning is required for large projects and application disciplines while revolutionary scientific breakthroughs are almost impossible without taking chances or risks. Before starting the research project on human genome, scientists had already made plans on the content and method of the research. They did not have to take any chances or risks because all they should do have already been carefully planned. There were no technical obstacles that had not been solved. Therefore, they just followed the plan step by step and accomplished the project in the end. As for significant scientific breakthroughs, they are the important discoveries and theories that disaccord, at least to some extent, with established principles or our intuitions, such as the Theory of Relativity and quantum mechanics. One has no choice but to take chances because established theories may not be applicable on the boundary of what is known and what is unknown. Only after being examined through experiments, practices and observations, can they be confirmed or belied. In a word, planning and taking chances or risks are different means for different levels of academic researches.
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