One of the Saints biggest issues on defense is they let a player like Trey Hendrickson walk out the door. Bad move on Loomis's part and now we got old folks and castoffs manning the helm on the line. We also had bad draft picks in Foske and Turner. Only bright spots are Taylor, Bresse and Granderson. Lattimore has had a solid year also.
The poor tackling and bad angles is a lack of discipline and development. You can tell in the body language of the players they're ready for a change in the coaching department.