Jack ...Interesting "alternative universe" scenario regarding the Braves staying in Boston and/or the Red Sox moving. can't buy the part about ANY "new" stadium being built within Boston city limits over the past 50 years however...that's where "reality intrudes".
Fifty (50%) percent of assessable property in City of Boston is tax exempt (plethora of colleges, universities, hospitals, churches, city and state government buildings, etc.) , This has made developable acerage an absolute mirage. The Patriots were "rescued" by a last minute hastily assembled package in Foxboro (30 miles away) after the "last ditch" stadium proposal in Boston was voted down in 1970. Otherwise, Nashville, Birmingham, Memphis, et al were ready and willing to offer the Pats a home.
The recent "new" Fenway park proposal was laughable....build a replica of Fenway two blocks away...with a gargantuan right field bleachers (field glasses a necessity to see the bullpen from the top row of the bleachers). No room for parking, infrastructure, etc. Thankfully, the Henry group saw fit to "retrofit" the existing park into a very fan-friendly venue!
Braves Field was a deplorable dump for decades. In the 30's, Braves owners tried to get dog racing approved for dates when the Braves were out of town.
The Patriots actually spent $500,000 (quite a sum for that time) in 1960 to "renovate" Braves Field for use as their first AFL field. That was the largest capital investment in Braves Field since 1948 (when lights were installed...many of which lasted until the mid '90's, when BU dumped football). It's inconceivable that, even had the Braves stayed and flourished in Boston during the 50's, that Braves Field would have remined their home.
The light towers at Braves Field were taken down in 1970, not the 90s ... I lived in the dorms overlooking the field, at the time