From what it looks like right now- on a hot streak, power numbers around baseball down, and the Nationals securely out of contention, Adam Dunn could be the biggest prize of the baseball trade season, the hitting equivalent to Cliff Lee. Word now comes from the Twitter of ESPNs Buster Olney that there may be no real attempt by the Nationals to re-sign the 30 year old slugger.
"Heard this: Would-be free agent Adam Dunn has just about lost interest in working out a long-term deal with the Nationals because of what he perceives to be a lack of urgency from the team in working out a new deal. He does not feel there seems to be the same amount of interest as he has in working out a contract. The Nationals are fast approaching fish-or-cut bait time with the slugger, who is fast approaching his seventh consecutive with 38 or more homers. At a time when power is becoming more scarce in the game, his value would appear to be high in the forthcoming free agent market — if the Nationals don’t move fast. The Nationals have had conversations with other teams about possible deals involving Dunn, and it figures they will trade him if they don’t work out a contract extension in the days ahead. The White Sox are among the interested teams."
In my opinion you offer him a fair deal, and if he doesn’t take it you trade him, put Morse at 1st the rest of the season, and see what happens with Pujols, Fielder, and Adrian Gonzalez in the next few off-seasons.