That is going to be a tough task.
He will have to play at a high level for at least another 10-12 years to even have a shot at top 3 in key passing stats. He is 300 TDs behind P. Manning and if Brady and Brees play out the season, they will both pass Manning this year. I know with the increased passing in the day’s game, 30 TDs isn’t as impressive as it used to be, but Stafford has only done it 2x in his career and not since 2015. Stafford is 31 right now. He would need to average 30 TDs a year until he is 41 to catch Manning in TDs. That isn’t a small task at all. Just for reference, Brady has hit 30 TDs 7 times in 17 years just to show you how difficult it can be.
He has a lot better chance of catching Manning in yards than TDs. He’s 33,000 behind Manning. Brady will pass Manning this season.
And this assumes that he will be healthy too. He has played every game since 2011, which is quite a feat in itself, but it’s tough to stay healthy. And once a guy gets in his 30s, after a lifetime of abuse, it gets harder and harder to stay healthy and play at a high level. Brady and Brees are the exception to the rules. Most QBs really hit a huge downturn at 35.
After watching NFL football, it really is amazing that guys can play for 10 years as it is.