Originally posted by Galactic Empire
That is one of the issues I had with using EOTP and Zone Shark for my SAs. My play calling is limited to using those guys in only underneath zone coverages. I use to play a good amount of cover 3 with 2 CBs dropping deep, but now I just have my safeties playing 2 deep. All my coverage CBs and LBs are golding EOTP and Zone Shark. That might work out though, since the safeties are built with speed and pass coverage skills. When I reset, I will be using S* SS who will be a speed demon and hard hitting/pass coverage guy. He will support the run to a degree but I usually leave that up to Vader and my run supporting CB (who I also need to rebuild better).
You can't go with straight cover 2 against the playbook I'm using on Air Raid, fwiw. You have to go at least Cover 3, really more heavily Cover 4 probably.
I'm almost always sending 4 routes beyond the underneath coverage.
Seems to me, if this does appear to be able to work out, that you'd want two lines of guys for coverage. Monster Hit, 3DS, Closing Speed type guys over the top, with the EotP, 3DS, ZS type guys underneath. Cover 4 actually will force a whole bunch of underneath targets, at which point both layers of your defense should have a decent capability to possibly force a fumble on what is otherwise a pretty uncontested catch by a HB or clearout type route from a WR.
You'd need 3 real stud DT/DE/DE guys though to run a Cover 4 like that. You wouldn't want the QB so comfortable that he can simply wait out the underneath guys completely with regularity, and then he just wins 1-on-1's way down the field with regularity. You gotta try and get 3 rushers to force the issue at least a little bit some of the time so your underneath guys have a chance to impact more plays.
Once you get down in the redzone, you can start lightening up the over the top coverage for more underneath stuff and some flats type stuff.
Those are my thoughts in general. If I were doing a full zone defense, I'd build it from scratch planning to use Cover 3-4 looks against big passing teams probably with +1 CB type formations, and the other run-blitzy stuff against rushing heavy teams and going +1 LB regularly against 3WR and 4WR rushing formations.
That's a big roster demand though. Probably looking at wanting 22 players really, and at least 3 S*'s at DE/DE/DT. 4 Safeties. 2 DTs (lots of 3 man fronts). 3 DEs. 6-7 CBs (3 for outside over the top builds, 3-4 for underneath builds). 5-6 LBs, half run stuffer/blitzy, half built for coverage (when you go Quarters or 3-2-6 type looks against all-pass type teams). Lots of 3-4, 3-3-5, 3-2-6, and Quarters type looks.
Means you'd want an 18 player offense, so you need to specialize that offense pretty heavily to eschew some roster positions. Either go no-FBs like Air Raid, or no/little WRs like Ground Assault. Zero in on either 3WR+ formations only, or 2WR or less formations only.