If the Phils were looking at Atlanta in the early 60s, it must have been to prompt the City Fathers to get busy and build a new stadium. Connie Mack Stadium (the old Shibe Park) was an ancient structure, at the end of its economic life.
Originally Posted by DTF955
The main issues MLB had regarding an Atlanta move in the early sixties was the unresolved civil rights struggle. Imagine Dick Allen a Rookie for the Atlanta Phillies in 1964; how much fun would THAT have been? (It would have been less fun for Allen than anyone else, given his late grievances.) Baseball didn't want to be in the middle of THAT scene (although the city of Atlanta always had more moderate political leadership than the rest of Georgia when it came to the Civil Rights/Integration issues).
The other issue was TV. Television might let a small-market team such as Milwaukee move to Atlanta, but there was no way, no how, that the TV execs were going to allow MLB to completely abandon the Philadelphia TV market. I'm sure that Bob Carpenter got that message from TV via MLB early in his "exploration" process.
"I do not care if half the league strikes. Those who do it will encounter quick retribution. All will be suspended and I don't care if it wrecks the National League for five years. This is the United States of America and one citizen has as much right to play as another. The National League will go down the line with Robinson whatever the consequences. You will find if you go through with your intention that you have been guilty of complete madness."
NL President Ford Frick, 1947