You nailed it, Brady just always rose to the challenge, as corny as that sounds. Even into his early forties, the guy just brought a laser focus to all he did. His seven rings eliminate the possibility of coincidence. He was just that great, a winner.I don't think you can simply exchange two different players and say they would each accomplish what the other did. There is chemistry and intangibles to consider, and I'm just not so certain Rodgers would have seven rings on his fingers, because that is an insane - an unthinkable - amount of rings to have.
I also tend to think Brady was more clutch than Rodgers, although I don't have the stats to prove it, just a hunch.
Rodgers would have benefitted from better teammates, but that's true for all QBs. Rodgers had the ball in his hands with many playoff games on the line, and more often than not, he didn't come through - or at least that's how I remember it. There certainly were exceptions - thinking about the playoff win in Dallas (2017?) where he threw a 30-yard rope to a TE (can't remember his name, help!). Crosby kicked and then re-kicked 51 yard field goals to win. That was clutch, by Rodgers and the TE who caught the ball and fell OOB, and by Crosby.
I'm not blaming Rodgers for the Packers' inability to win another Lombardi or two - there is plenty of blame to go around for that. He made some terrific plays, mind boggling really over his long career. The playoffs were a different story. As Packer fans, we really don't have much to complain about over the last 30 years.