Great idea, except that (a) the Braves already have three All-Star outfielders, and (b) Griffey makes a boatload of money and the Braves aren’t going to take his salary.
His answer to (a) is that the Braves could move Griffey or Chipper to first base. Except that neither has ever played the position before. Remember Ken Caminiti? His answer to (b) is to trade Javy Lopez in the deal for Griffey. Leaving aside whether the Reds would have any interest in Javy, Junior still makes about $2 million more.