Quick Hits: Padres, Marmol, Tigers

Teams hoping to trade for Chase Headley will have to wait — at least for a few months. Padres general manager Josh Byrnes told Peter Gammons of MLB Network that San Diego executives have worked hard to assemble an improved offensive team. “We're not breaking it up now," Byrnes said (Twitter links). As Gammons notes, it’s possible the Padres will re-consider their stance in July. Here are some notes from around MLB…

• Carlos Marmol’s name surfaced in trade talk this week, but said today that he expects to be with the Cubs all year despite the rumors. "I don't believe in anything," he said, according to Paul Sullivan of the Chicago Tribune (on Twitter).
• Tigers manager Jim Leyland said he intends to keep managing as long as he can, Jason Beck of MLB.com reports (on Twitter). "I'm not retiring, whether we win or we don't win," Leyland said. The 68-year-old obtained a one-year contract from the Tigers after leading the team to the World Series.
• Many of the teams expected to contend in 2013 are already facing significant questions, Anthony Castrovince of MLB.com writes. The Tigers (closer), Cardinals (shortstop), Yankees (lineup), Rangers (rotation) and Dodgers (outfield) have issues to address this spring.
• Daisuke Matsuzaka can opt out of his deal with the Indians on March 26th, Jon Heyman of CBSSports.com reports (on Twitter).