It could become the most expensive apartment ever sold in New York.

The appointment of John Thain to head troubled Merrill Lynch proves, yet again, the long reach of Goldman Sachs.

Thain, currently CEO of the New York Stock Exchange, began his career as an investment banker at Goldman. He went on to become co-president and co-chief operating officer.

As the New York Times reports, Thain was chosen not only for his success at the exchange, but also for his background at Goldman.