As a crusty, curmudgeonly original CNN special assignment correspondent from the early 1980s, I have used these pages more than once to vent about the second-rate dingbats who have populated my old network over the past quarter-century.You know them: cockwomble Chris Cuomo, blowhard Don Lemon, lumbering harpy Candy Crowley — a parade of television solemnity occasionally interrupted by journalism.I spent enough of my career pulling leeches off my…