One thing I think just about everybody is overlooking when they use season numbers to compare the Sox and Astros:
24.4% of Sox season plate appearances were by guys who will not be on the playoff roster (assuming no Goodwin with that figure). I know every team has had injuries, but I'm betting that figure is much higher for the Sox than the other playoff teams.
To be more specific: Robert, Jimenez and Engel all has ZERO plate appearances against Houston this year. Sheets only had 6. That's close to have the lineup that Houston has seen very little or none of this year.