Hypothetically, can a 41 year old QB...

Father time is undefeated, Brees is losing ability but not enough to warrant replacement, but at the same time we don't want to end up like New England who lost there heir to Brady by trading him to SF and now Brady and the Pats may be parting ways and like the Saints in later years of the franchises respective HOF QB careers cant keep talent around them because they eat up so much of the cap space.