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The key factor in winning is a quality forecast. However, creating a quality forecast is always a problem of additional information and better processing of this information. Write what you think about a quality forecast, its role in a gaming system and the methods of its construction.
Having a quality forecast not only helps you in winning but it also increases your chances of success in sports-betting.
In sports-betting, knowledge and information is power. The more information you have and studied, the more factors will be considered in making your decision on which team to beat. Sure, there may be external factors that are outside your control but the other factors increase your chances of having a successful run on your bets.
With regard to the other disciplines you have mentioned, those factors are considered "natural responses" that apply to all aspects of gambling, whether it be sports-betting, card games, or other kinds as well. Those are the natural factors that everyone must possess in order to have a more successful run in your gambling activities.