The Sox rotation has entered a brave new world, not only the Commish's dictum against foreign substances on the ball, but also starting for a winning team with higher expectations than at the beginning of the season.
There is no real ace on this team, but there 5 pitchers who have each started 15 or 16 games with from 3 to 6 quality starts by each of them and ERA's ranging from 3.67 to 5.83. Since we are almost halfway thru the season, that's lot of starts by just 5 guys.
Lately, just about every Sox starter seems to be on a roller-coaster. Richards looked awful last week and night before last until something clicked with 1 out in the 2d inning: after giving up 5 runs, he pitched 4.1 innings of shutout ball. Pivetta pitched 6.2 innings of no-hit, shutout ball 6 days ago and gave up 6 runs in 4.2 innings last night. And so on.
Meanwhile, it does not help that the Sox defense leads MLB in errors, to say nothing of hits that might have been outs. The bullpen and the hitting--and the occasional good defensive play-- are key to all those come from behind wins.
Kimmi has said that a team that wins a lot but does not have a big run differential is, according to the experts, in peril. And that's our Sox with their 49-21 (.613) record, best in the AL and 2d only to the Giants, but a run differential of + 44, which is lower than the Rays +84, Jays +84, White Sox +82, Astros +130, Giants + 97, Dodgers +106, and Padres +78.
The experts say a team like ours is just lucky, but most of us who might agree with that also point out that we have a heckuva manager, particularly with respect to his sometimes erratic pitchers. Without question Cora, like all other managers these days, relies heavily on computer data, but, unlike a lot of managers, he also has fingerspitzengefuhl, a long word meaning a finger tip feel for the game as it is being played and in the context of that series, that part of the season, and the season as a whole.