"near totally void of any basic fundamental skills, and many of our losses can be tied to bonehead plays on defense, the base paths and elsewhere" is in my opinion unsupportable, especially the "tied to many of our losses" part.
As I have now said ad nauseum, to me the dominant fundamentals of baseball are hitting and pitching, and not a single player on this team can say he has not been coached on those fundamentals, not only here, but all the way back to age 10 or whenever. But coaching don't always produce the desired outcome because those two skills depend so heavily on the individual's innate skill and determination to improve. Defense is a fundamental, I certainly agree, but frankly don't see the lack of coaching.
Baseball to me is unique among major American team sports in that it requires an extensive apprenticeship and several levels of professional competition before even getting to the majors. That especially applies to hitting and pitching, but also to defense. And baserunning.
MLB teams are also unique in playing 162 games a year, and before every single one of those games hitting and defensive skills are practiced and practiced. Pitchers have to be careful of how much they pitch before games and in between games, but it's a certainty those sessions are carefully monitored and coached--to say nothing of video replays. No other major team sports practices remotely as much as MLB. There is no way, no how these players are not told, coached, instructed, videotaped, etc in those three fundamentals to a degree that boggles the mind.
In fact, my own theory is that lapses occur in part because the season is so darn long and the games so interminable. You can normally show every single play in a single game--but not all of the pitches-- in about 10 minutes, but it lasts 3.5 hours or so on average, and that time is dominated by the kabuki dances of pitcher and hitter mixed in with periodic meetings with catcher, coach, manager, and the odd infielder--all of whom have no interest in speeding up the game.