NEW YORK (Hollywood Reporter) - CBS News veteran Bob Schieffer wraps his 15-month run in the "CBS Evening News" anchor chair on Thursday, paving the way for Katie Couric's debut Tuesday. Schieffer recently spoke about Couric's prospects, his delayed retirement, a big regret, and his budding career as a songwriter. THE HOLLYWOOD REPORTER: HOW DO YOU THINK KATIE'S GOING TO DO WHEN SHE TAKES OVER THE ANCHOR CHAIR NEXT WEEK? Bob Schieffer: Katie's got all the tools. I think she's going to do a terrific job. She clearly has an enormous following. She's going to bring some people into the...