The A4D was a sole-source procurement, so strictly speaking there were no competitive proposals. Chapter 1 does address its design evolution. Chapter 3 discusses a subsequent attempt by Grumman to replace the A4D with an F11F variant and BuAer's funding of an attack version of the FJ-4 as a production alternative when Douglas appeared to be non responsive to its concerns about A4D shortcomings. Chapter 7 describes the subsequent jet attack competition that resulted in the A-7 rather than a competing A-4 derivative.
I don't have the new edition, but I have the old one. Amazon says the new edition is 16 pages longer (288 to 272), but comparing the tables of contents I don't see it. Chapter 1 is two pages shorter in the new edition, Chapter 2 is two pages longer, Appendix 1 is in the text rather than an appendix in the old edition, and appendix 2, the glossary, and the index are each one page longer in the new edition, maybe because of a change in font size (they are pretty small in the old edition). Unless the new index is 14 pages longer, or Amazon has the wrong page count, I don't know where the extra pages come from.
