If the criticism of the book is that it was the work of a lesser author, that doesn't really hold up unless Joe Sr. was really bad at picking ghost writers. I think JFK probably had a ton of help with it. The fact that it puts out a muscular atlantic interventionist vision of foreign policy that is radically different from his fenian anglophobic and isolationist dad means that Dad didn't direct what was in it. Unless the long con was a bigger deal to Joe Sr than any actual content.