It’s impossible to know is right. Arod may have been a better SS, but if Jeter had moved to 3B he might not have been as good of a 3B as ARod was, so you would have lost something there, so it’s not as cut, and dry as just inserting ARod at SS. The Red Sox could have had Mike Lowell, or Beltre playing 3B for them the last 3 years, and they still wouldn’t have made the postseason. Nothing is as cut, and dry, or as easy as some suggest on here.