PFF - have y'all seen this

To be fair, Carr has absolutely been bad in the red zone. That's not to say he can't improve. It's not to say it is even all his fault (you could certainly say the Saints have a better cache of weapons if all are on the field). But he has definitely been beyond bad in the red zone, especially compared to the rest of the league.
In 2022 he had 11 touchdowns to 2 interceptions in the redzone

In 2021 he has 18 touchdowns to 3 interceptions in the redzone

In 2020 he had 15 touchdowns to 1 interception in the redzone

In 2019 he had 15 touchdowns to 2 interceptions in the redzone

In 2018 he had 14 touchdowns to 2 interceptions in the redzone

So beyond bad is a stretch for sure. However, there’s some things like completion percentage in the redzone that he could clean up. I also think some of the issues they’ve had in the redzone have been him trying to do too much since their offense became stagnant all too often. Who knows if our coaching staff can do anything to improve him.