Defending Trips Pass and Toss from 5-2/5-4

.$....................F

......B.........B........C...C
.9..4.....0.....4.....9
..Y.T.G.C.G.T............X
...........Q........W....Z

...........F

All of your ideas are sound, IMO. If you prefer to maintain your two deep look, have the 9 tech. line up outside the wing. That way you will have them outnumbered on the toss to the trips side and the 9 tech can peel off with the wing if he runs the flat/wing. Remind him he can be physical with that man until the ball is thrown.

If the wing runs a vertical route, your FS can pick him up. If the wing runs a quick in-breaking route, your ILB is there. In either of these situations, the 9 tech. should rush the QB (you may wish to have him peel off on the back out his way as well). Rep your 9 techs on getting a read off the WB and taking appropriate action. This would include shouting "reverse" if the WB runs back into the backfield. Obviously, the other 9 tech. needs to force that play inside.