Legal barriers are not the only barriers. Many companies don't work with a quick-fire model. If you, as a hiring manager, hire a person and then fire them withi

Legal barriers are not the only barriers. Many companies don't work with a quick-fire model. If you, as a hiring manager, hire a person and then fire them within a month, you're going to need to sit down with your manager and explain what happened. If you do it twice, they're going to have serious doubts about whether you're qualified to be a manager. Plus, it's sociopathic: If someone has a job already, having them quit that job, start working for you, and then get fired and end up on the street because it didn't work out... man, that's a jerk move. The manager owes it to the new hire to be confident that they'll work out.