Don Mattingly was in the right place at the right time in the mid 80s. So what? It doesn't mean what they accomplished wasn't extraordinary.
The Yankees were nothing special in the mid 80's.
Don Mattingly wasn't in the right place at the right time. Remember, he never won a World Series. He left in 1995 and what happens? The Yankees win the next year and three more times after that. Jeter was in the right place at the right time.