I read on Deadspin that ex-New York Times baseball columnist Murray Chass had a blog post up about possible Hall of Famer-to-be Mike Piazza's legendary bacne. After exceprting Chass' post thusly --www.murraychass.comMurray Chass rocks baseball column writing old school. No blogs for him, nosiree.When steroids became a daily subject in newspaper articles I wanted to write about Piazza's acne-covered back. I was prepared to describe it in disgusting living color. But two or three times my ed