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The Red Sox traded four-fifths of their Opening Day rotation before the July 31 trade deadline, making this an extremely difficult area to grade. Boston’s rotation actually was a bright spot in the first half, but Jon Lester and John Lackey — both traded — spearheaded the unit’s success. The second half featured less-than-impressive results behind a cast of young starters. The up-and-coming hurlers weren’t awful, collectively, but they certainly endured some struggles amid their valuable experience.

To make life easier, let’s grade out the starting pitchers who finished the season with Boston and who made at least seven starts with the Sox.

Clay Buchholz (28 starts, 8-11, 5.34 ERA): C-
Joe Kelly (10 starts, 4-2, 4.11 ERA): B+
Rubby De La Rosa (19 appearances, 18 starts, 4-8, 4.43 ERA): B-
Brandon Workman (19 appearances, 15 starts, 1-10, 5.17 ERA): C
Allen Webster (11 starts, 5-3, 5.03 ERA): C
Anthony Ranaudo (7 starts, 4-3, 4.81 ERA): C