Cora's handling of the starting pitching at the outset of 2019 has been vilified here more than his involvement with the Astros -- and rightfully so, since this is SOXtalk.
However, I don't recall anyone considering that the veteran starters' arms may have been taxed slightly more than usual from the previous extended (albeit championship) postseason; not only did Sale, Price, Eovaldi and Porcello work a month longer than ever before, but all those "extra" innings were quite possibly higher stress than normal.
Cora could've been limiting the starters' workload in Spring Training '19 out of necessity more than choice. Guys just may have been still hurting -- eventually, Sale, Price and Eovaldi all missed significant time to injuries, while Porcello just looked cooked. Was it really just coincidence that Boston's best pitcher in '19, Rodriguez, was both the youngest and the guy with the least mileage on his arm from the '18 postseason?