How to Avoid Lifting Errors

The book basically says, okay, every exercise, break it down. What are the potential causes for a lift or an error? And then what exercises basically fall into the category of those archetypes. So if you have a trajectory issue, what are the best exercises that have a more significant impact on that aspect of the error than the classic movement? The goal was to say, okay, one of these potential errors has to fall,. It has to eventually come back down to one of these three things.