What kind of "exciting youngsters" can we offer? Will we be able to take Buchholz and Bard off the table and still get Gonzo? Because otherwise, I'm really not sure we need to rob our pitching to supplement the lineup. BOTH have been issues both in this season and in the postseason.
The recent history of that kind of trade from the perspective of the team giving up the veteran has been pretty spotty. The speculative gain has often been much sexier than the reality.
On the one hand, Adam Jones definitely recompenced the Orioles for the loss of Erik Bedard
Oh the other hand, there's the Twins debacular handling of the Santana deal.
Generally it winds up somewhere in the middle, kind of like the Martinez deal. The pieces you get back can be more accurately descrubed as "interesting and useful" than "exciting."
In the end I don't think it's a slam dunk that Gonzalez will be traded. Even if he is, there's nothing forcing the Padres to do it this offseason. I think that people who say it's the only way for that franchise to move forward are engaging in wishful thinking.