'Calloused' Cubs in good place to start second half, but their high expectations demand more than just good

Somehow, the Cubs were not buried by an avalanche of injuries. They didn’t wipe out during a monthlong slump that dropped them from the top of the division to a .500 team. They didn’t watch the Brewers run away with the NL Central even earlier than usual. The Cubs survived the first half of the season, a dozen games north of .500 and in playoff position as the All-Star break comes to a close. But they’ve got bigger things in mind than just surviving. “We’re OK with where we’re at,” outfielder…