Amazon introduced the notion of a “bar raiser” who expects a candidate to be stronger than 50% of the staff. It’s sort of appealing, but if your attrition is un

Amazon introduced the notion of a “bar raiser” who expects a candidate to be stronger than 50% of the staff. It’s sort of appealing, but if your attrition is unbiased (you lose equal numbers of strong and weak staff) the right edge of the bell curve seems too small to keep up with it.