Pretty accurate and it goes along with their respective management strategies neither of which, btw, is inherently wrong. The Sox see a window that could open and they aim for the window, the Cubs under Theo are seeking to open a long, sustainable window. Sale and Samardzija is arguably the best lefty/righty TOR tandem in the game on paper. The Cubs have a solid, if unspectacular, rotation headed by a proven starter just below ace level. The Cubs line up is loaded with potential but only two or three proven commodities. The Sox have a solid core with some unspectacular pieces around them. Both bullpens could be very good but nobody in their right minds predicts bullpen performance year to year, the best you can do is build depth and hope for the best. If you had to say which one of them had a better playoff shot you'd have to, with any logical thinking, pick the Sox. Baseball, however is rarely logical.
I will say this, Detroit is my candidate to fall off a cliff a la the Phillies a couple of years ago. They don't look right to me and I think Verlander is ordinary at best. That leaves the AL Central wide open. If I were Rick Hahn and company I would aim for this window as well.