We’ll fix it in post
I remember this phrase from back when I was making commercials (a LONG time ago now) and I’m sure it is still one in very common use. We’ll fix it in post – shorthand for: let’s push the problem down the line and let someone else (or our future selves who may as well be someone else) handle it.
It isn’t just fixing a mistake in post-production either. There are many versions of this. Fixing your flow problems in the edit. Hoping your inbetweens will improve dodgy key animation. Letting your story problems through and hoping to fix them in animatic stage. Compared with some of those, “we’ll fix it in post” isn’t actually so bad.
The more fundamental the stage, the more you simply can’t rely on fixing it down the line. I don’t know if I have ever seen a scenario in my entire career where it has been easier to fix a problem later rather than fixing it right now in its earlier form. Once you build in problems, well, you’ve built in problems. You’ll face enough unforeseen difficulties when making anything that throwing foreseen ones on top could be an absolute disaster.
If something isn’t quite working, fix it now. Don’t fix it in post or anywhere else. Don’t shove the problem down the line or allow it to be next week’s problem. It rarely ends well. I’d say it never ends well except someone will probably hit me with a single example where it worked out okay. Don’t take that chance.