“Hindsighting” may not be a word, but if Oscar Wilde can introduce the world to the notion of “Bunburying” and then a century later Rafael Casal and Daveed Diggs can bring “Blindspotting” to popular culture, I would like to think I can get away with gerundifying a noun. That’s right: I invented the word “gerundifying” to justify inventing the word “hindsighting,” none of which really provides analysis of the A’s off-season moves. So let’s get to that, shall...