Missing TDs

Jared Cook had 9 Touchdowns this season while missing a couple games, a healthy Kamara is a proven red zone threat, even Taysom is a match-up issue.

The mismatches are there the Offensive problems come when we play teams with Elite caliber Linebackers/Safeties. The Eric Kendricks/Anthony Barr, Jaylon Smith, Leighton Vander-Esch duos, Deion Jones. When teams can take away your Tight End, Running back mis-match player with a Linebacker or Safety you need someone else in your Receiving group to step up and beat them.

Saints need better route runners, and reliable hands catchers from their WR2, WR3, to win their match-up when teams are Doubling Mike Thomas all game and just intent on him not beating them.

Consistency from the OL needs to improve as well, they were a highly touted unit with a lot of accolades but they put up a few stinker games @LAR, first Atlanta game, and the Minnesota Wild Card game there was some awful OL play. I think you can upgrade at Left Guard, with a more athletic, light on his feet Interior player that can get to the 2nd level blocks quicker and fit the zone blocking scheme you would ideally run with Kamara/Taysom Hill.
The Oline needs an identity. 1 nasty LG would do the trick.
Cook is great but not a red zone threat.
Personally, I'd like an Oline that given a 1st and goal from inside the 5 would be an automatic TD. An Oline that wouldn't care if you put 12 guys in the box would get 4 yards of movement every run play. Just a killer instinct.