Scott D. Pierce: ‘Better Call Saul’ is a great show — because it’s not about Saul

“Better Call Saul” is the greatest prequel in TV history. Because it’s not about Saul Goodman.Saul (Bob Odenkirk), you’ll recall, was introduced as a sleazy lawyer with criminal ties who ended up working for drug lord-in-the-making Walter White (Bryan Cranston) in “Breaking Bad.” And, when AMC announced the spinoff/prequel, I thought it was a terrible idea for two reasons:First, I was convinced that prequels are generally bad. (I blame George Lucas and his &ld