Perhaps. On the other hand, there is plenty of evidence out there that spending big bucks on players doesn't guarantee success. Mets are 20-24 with the biggest payroll of $308M. Astros are 20-25 with 3d biggest ($250M). Rangers are 23-23 with 5th biggest, $233M.
And, speaking of the Rays, their payroll is 27th, $100M, and they are 24-22. Cleveland's payroll is 26th, $100M, and they are 28-17. Milwaukee's is 22d, $107M, and they are 26-18.
So, if we dragged John Henry into a court of law and charged him with uncaring malfeasance, his defense counsel might point to the Sox 11th biggest payroll, $182M, which includes paying $17M (or some of it) to Chris Sale, who is pitching (and pitching well) for the Atlanta Braves, ditto Turner, $7M, who is elsewhere, ditto Giolito, $18M, who is out for the whole season, ditto Story, $22.5M, also out for the season. Also Kelsey Jansen, who's getting $16M and so far has pitched 15.2 innings, which translates (for a whole season) to something like $250K per inning. Jansen currently relies basically on one pitch, a cutter, and got hit hard his last time out.