Tom Brady’s signing with the Buccaneers as a free agent last winter spawned hope that brighter days were ahead for a once-downtrodden franchise. To deliver on that hope, Brady needed some relentless play from Tampa Bay’s defense. “We played like our life depended on it,” Jason Pierre-Paul said Sunday after the Bucs forced two more turnovers and sacked Aaron Rodgers five times to key a 31-26 victory that sends Brady to an unprecedented 10th Super Bowl.