Not the 3rd base coach.
He did everything wrong on that play. It's quite mystifying as to how you could defend this play.
"So, now he's not allowed to ever make an error?"
There's a difference between an error and a mental mistake. The point is last time he made a mental mistake Sveum talked to him and said "next time" he would sit Castro. Friday was "next time". Sveum again gave Castro a stern lecture. It was clear the first time, now it's crystal clear, Castro can make mental error after mental error with no consequences.