Dammit. They let Bay go. Sadly, he's the kind of junk the Inidans love..
No definitive HOFers involve and obviously I'm gonna have some Cleveland bias on this, but I'd still think the Expos giving up Cliff Lee, Grady Sizemore and Brandon Phillips for Bartolo Colon.
I'd also like to take a look at Seattle's AA and AAA teams from 06-08. Asdrubal Cabrera traded away for Eduardo Perez. Shin Soo Choo traded away for Ben Broussard. Adam Jones traded away for Erik Bedard. Mike Morse traded away for Ryan Langerhans. Rafael Soriano traded away for Horacio Ramirez. Brandon Morrow traded away for Brandon League and Johermyn Chavez.