Common sense steps in here and says: Separate the parts you want to be mobile from the parts you want to be inert. You have seen the result, and I know many have the skill to apply it. ↗
Some people are like wheelbarrows; useful only when pushed, and very easily upset. The time to stop talking is when the other person nods his head affirmatively but says nothing. ↗
Sometimes when an actor says something almost perfect, but you know you have to edit it, if you tell them to change something immediately, it will come out great. ↗
Well, you know, one lawyer says I'm the only witness and I'm not credible. Another lawyer says this witness - there's tons of evidence that's been available for years. ↗