Doyle Alexander actually had two stints with the Braves: 1980 and again in 1986-1987.
His first go-around began in December of 1979, when he and Larvell Blanks were traded by Texas to Atlanta for Adrian Devine and Pepe Frias. After going 14-11 in 35 starts, he was dealt to the Giants in December, 1980 for John Montefusco and minor league pitcher Craig Landis.
Fast forward to July of 1986. Alexander- now with the Blue Jays- is traded once again to Atlanta, this time for rookie pitcher Duane Ward. Doyle would go on to pitch in thirty-three games for the Braves between July of '86 and August, 1987, when he was sent packing to Detroit for a prospect by the name of John Smoltz. Alexander helped the Tigers win their division, going 9-0 in eleven starts and finishing 4th in the voting for the A.L. Cy Young award.
1981 Topps #708
1981 Donruss #448
1981 Fleer # 255
1987 Topps #686
1987 O-Pee-Chee #249
1987 Donruss #657
1987 Fleer #510
25-27 4.09 ERA 68 games 466.2 IP
Changed the future of a franchise- only by what he brought in return, not by what he did on the field.