true that, and I wonder, based on the little info I've about employment in the US, it's so expensive to fire someone once you realize they are not a good fit?
Even in my country (Arg), that has huge amounts of protections to workers, the first 3 months are consider trial, so you can fire someone without additional cost of the payed salaries.
Most workers in the US are under the "at will" regime: they can be let go at any time in theory. In practice, companies (especially big ones) usually try to "build a case" to justify the move.
