Saints should trade for Tanner McKee. He’s better than Rattler or Haener and has WAY more upside than Carr.

McKee doesn't stretch the field, always takes the check downs, and while he didn't have Smith or Brown, he did have Dotson and Goedert, and they bailed him out a couple of times on some off target passes. Dotson and Goedert are probably a better pass catching combo than Rattler ever had. There are reasons he fell to the 6th round. He's unathletic, and does not run well. Slow 40 and shuttle times IIRC. He has a NEGATIVE college Career rushing total. He doesn't put enough touch on his passes, specifically shorter passes. I watched that eagles giants game. The hapless Giants got to with in a touchdown in the 4th quarter and McKee did not put them away by any mean. As a matter of fact, he took a HUGE sack in the 4th and the Giants were able to cut the lead to less than a touchdown.
His stat line looks okay that day, and yes, the eagles sat some first string guys, but they still had way more fire power than the Giants, and if you watched that game, McKee was not stellar and the giants were in that game until Drew Lock threw that late 4th quarter interception.

Not saying that McKee doesn't have upside and develop into a quality starter, but saying the 6th round pick who has played 1 mediocre game against the worst team in the NFL is Better than Rattler is WILD.