Practice plays vs. Dime/3-4/4-6 Cover 3.
Practice plays vs. 2 Man Under from Dime/3-4/4-6.
Create a scheme by first getting a ground game.
Get a formation that has a run in 3 directions.
-Ex: I-Form Tight Pair: Quick Audible is a Power O, Set one audible as a toss, Set one audible as a Counter Weak.
Now create a passing game.
Pick a formation that you like.
Lets say Doubles. On every play, have the same motion. In Doubles, you can motion the far right WR, so motion him left, two steps, then snap.
Use the Quick Audible up [Curl Flats] if the slot WR on the left has no one in front of him. Instantly throw to L1 (Slot WR running a flat route.]
If they only have 5 defenders in the box, quick audible down is a draw / off-tackle. Hopefully it's a draw. Run it a lot. Make sure you motion your far right WR every time.
Now find a play that has your right WR on a C-route. The C-route looks like a C..
If they call bump n run coverage, [All WRs will have someone 2 yds in front of them.] you want to run the play that has the C-route run by the right WR. When you use the motion left 2 steps & snap, he becomes an unbumpable, you can quickly throw it to him & get a huge gain.
Build on that.