Eliot Spitzer may be Scott Stringer’s worst nightmare, but he could be a dream come true for John Burnett. Who? A 43-year-old African-American with nearly a quarter-century experience on Wall Street, Burnett is also running for city comptroller — as a Republican. Spitzer has brought an explosion of public attention to the race for comptroller. Good: It’s arguably the second most important office in city government and shouldn’t be handed to someone in a walkover. Maybe now we’ll have a conversation about the job — and job qualifications. Until Sunday, Manhattan Borough President Stringer was looking at that walkover, with...