Dan is suffering from the mid 30's. It happened to guys who were much better ball players, i.e. Andruw Jones, Dale Murphy, its somewhat happening to Pujouls (yet never compare Uggla to Albert). Guys who peak between the ages of 26 and 30 and then the natural regression begins until the player can no longer compete at the level at which they are accustomed. I believe this, especially in the case of position players. Only the best of the best baseball players can remain competitive after the age of 33-34, with the exception of the performance enhancer users. These guys typically become Hall of Famers, i.e. Chipper, Jeter, .
I would love to see the average statistics of guys 30 years old and older in MLB (pitchers excluded). Baseball is a young man's game. Dan is just getting old. Therefore, if I was a GM, I wouldn't be giving out 4 and 5 year deals to guys in their 30's, that is unless they are very special players.