ATLANTA — Fredi Gonzalez says it's easy to see why he has never been more optimistic at the start of spring training. With pitchers and catchers reporting Monday in Kissimmee, Fla., the Braves' manager already has a clear picture of what his team should look like in April. Barring any surprises, the only question is third base, where there likely will be a platoon to replace the retired Chipper Jones.