Tom Brady was almost a Saint

Why would Brady coming to the NOLA have any influence on making Brees return, if you're retiring why does it matter?? Maybe Tom was just doing his diligence just in case, because Drew was 50/50 either way and working with Sean Payton would have been ideal since Brady knew he was leaving NE.
BECAUSE... If Brady plays past Brees a couple of seasons he will pass Drew in some of the records, not to mention that he would do it as a Saint. I think that Brees was betting that Tom would retire