The Sox have given Danks, 31, plenty of opportunities, and the most frustrating part is he’ll have a good start here and there before falling on his face again. His ERA was 4.75 in 2013, 4.74 in 2014 and 4.71 last year, which isn’t the kind of incremental improvement the team was looking for from the guy Ken Williams handed a five-year, $65 million contract in 2012.