A frustrated John Smoltz called his agent in the winter of 2001 and gave him specific Bronx-themed instructions. “(I) said, ‘Call the Yankees, tell him I’m going,'” Smotlz recalled to The Post’s Joel Sherman and Jon Heyman on the latest “The Show” podcast . His agent, though, had made a promise to former Braves executive John Schuerholz that he would circle back to them before any decision would be finalized. John Smoltz pitching for the Braves in 2007. Anthony J. Causi Those late talks ultimately swayed Smoltz, keeping him in Atlanta at the “buzzer” rather than joining the Yankees after their Game 7 World Series loss to the Diamondbacks. Said Smoltz: “That’s how close it was.” One of the most famous failed Yankees free-agent pursuits involves Smoltz’s ex-Braves teammate Greg Maddux, especially due to the ramifications it would have had for both franchises, and this Smoltz entry is a neat little “What if” to ponder from the early 2000s.…