Nobody likes being shouted at. Indeed, the normal reaction of people is to avoid actions that will lead to being shouted at. Players are no different from anyone else in this regard. Players don’t want to be shouted at by their coach, so will actively avoid actions that will lead the coach to shout at them.
This is important information for the coach. If a player or team is continually doing what the coach does not want, leading to angry words, this is important feedback for the coach. It means that the players do not understand the instructions sufficiently, or are not able to perform as required. Therefore the correct response of the coach is not to raise their voice but to review their instructions and their practice.
If you are shouting a lot at practice, review your practice plans and your feedback. The problem probably lies there.
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