Because no one roots for Goliath.

How many copies of a book could be sold in which the Yanks’ perennial high payroll makes them contenders every year, and in which Cashman, notoriously close-mouthed and still working for the organization, refuses to dish any inside dirt, or indeed, make public any significant organizational decision processes or rationales that don’t serve his interest/the organization’s interest/the common interests of both?

There’s no story there. The story for Epstein is how he beat Goliath and ended The Curse. The story for Beane is how he beat all the Goliaths in a limited way to contend despite a low payroll. What compelling story could be written about Cashman at this point?

No, you’ll have to wait until you get your wish, and he’s relieved of his responsibilities with the Yankees for that book, Steve?