I'm not sure I understand the Lo Duca deal. If the Mets are both counting on increased revenue from SportsNet NY and looking for marquee stars to push ratings why not just bring back Piazza if you are not going to upgrade the catcher position? Lo Duca bottoms out towards the end of every season, he's only 3 years (or so) younger than Piazza with stats that don't exactly dazzle.
So if you're not going to upgrade the position or get younger, why not keep the best offensive player in Mets history and one of the most popular players they've ever had?