Curious, what is the "wrong" person? I've worked with some co-workers before that were clearly not a fit, but it was so obvious. One time I was asked to help a new hire with a project that was falling behind. He had spent 2 months trying to get some javascript (that he copied from a project I had done) working. He didn't even know what the web console was. As soon as I opened it and saw the javascript errors the fix was simple. But he spent 2 months just smearing random javascript around... Surely it would be easy to filter that person out during interviewing.

But on the other end... I've worked with some people that are pretty good at leetcode and very fast coders. But even though they write many pages of code every day and tons of commits, their code is absolutely horrible, full of bugs, impossible to read. They got stuff done, but it was at great cost in the future. That was mostly why I left my original job in the first place (looking for work now for 18+ months). We hired a couple of new people and they were pumping out so much code I couldn't keep up with all their commits. Bugs started rolling in and they were too busy working on the new projects to fix their old crap. Boss had me hunting down and digging through their garbage code while my projects were getting behind and I was the one "under-preforming". I started going insane, unable to get out of bed, staring out the window for 12+ hours a day unable to look at their code. Mostly walked out. Those new people all quit after I left as well but the company's market crashed due to covid so we would have all be laid off anyway.