As the New Orleans Saints face uncertainty at the quarterback situation, the San Francisco 49ers are in a similar, but completely different boat.br br The 49ers have spent the entirety of the offseason trying to find common ground with their fourth-year signal-caller Brock Purdy on an extension. Purdy, the former seventh-round pick who has made less than $3 million in his career, appears to be seeking upwards of a $50 million annual salary.br br Meanwhile, the Saints have already paid a quarterback, but they're uncertain of his availability. Derek Carr has a shoulder injury that could require surgery, which would put him out for the season and leave the Saints with no reliable QB to guide them toward the playoffs.br br Is there a solution to both teams' conundrums that involves a stunning trade? That's the way one NFL writer apparently sees the parallel situations.br br On Saturday, Grant Cohn of 49ers On SI urged the Saints to trade for Purdy and extend him, while San Francisco would collect the ninth-overall pick in the upcoming NFL Draft.br br "(The Saints) should call the 49ers and offer them the ninth pick in the draft in exchange for Purdy.