ATLANTA — The Braves are trying to be optimistic after a flurry of offseason moves signaled the franchise going into rebuilding mode. Three pitchers were at Turner Field on Monday for voluntary workouts leading up to spring training, all looking to put a positive spin on the dealing of sluggers Justin Upton, Jason Heyward and Evan Gattis. "We have a group of guys who kind of have a chip on their shoulder," said left-handed pitcher Alex Wood, expected to be one of the few holdovers on this year's roster.