There are mostly two ways that teams have success have off play-action and bootlegs: by getting quick and rhythmic throws, and by having time to attack deep down field. The New Orleans Saints need to find a way to limit both of those for the Vikings run-heavy offense.
The Rams have a very similar style of offense to the Vikings.
In the first half of their Week 16 matchup with the 49ers, they had a ton of success using a sail/flood concept, which is designed to beat Cover 3 — the 49ers primary coverage. On each play Jared Goff faked an outside zone and bootlegged.