Adam Dunn entered Monday night's game between the White Sox and Cubs with a .227 batting average. Not too many years ago, that would have had fans wondering if he was ready for the scrap heap, or at least consigned to the Dave Kingman home-run-or-very-little segment of baseball production. But Dunn also entered the night with a .944 OPS thanks to 53 walks to go with his 23 home runs, and fans have come to understand that's very valuable indeed.