need some help with pass def

[QOLOSSUS]

Lately I've been playing some opponents online that have been killing me in the air. I've tried blitzing off the edge and in the middle to get some pressure, but get hurt in the flats and slants. then if i switch to either a man or zone, i can't seem to generate a decent rush on the qb and i get picked apart. right now, i'm using the cheif def pb and it's been real iffy. So, I'm looking to get some pointers from you all on some zone blitz schemes or maybe a few different def. PB's i can lab with a good mix of zones and blitzes. Either way, any help with the subject would be appreciated

[Izreal]

What team are you running with? What offensive sets are your opponent using? Against a 4 wide set I automatically go to the quarter cover 2 man defense and press my corners. O yeah and I control the MLB and take away the middle of the field and force the QB to throw to the edges.

[QOLOSSUS]

What team are you running with? What offensive sets are your opponent using? Against a 4 wide set I automatically go to the quarter cover 2 man defense and press my corners. O yeah and I control the MLB and take away the middle of the field and force the QB to throw to the edges.
I've running with Denver. My opponents have been beating me with some comebacks, crossing patterns and floods out of singleback (big, norm, 4wr or 3wr and a good TE)

[clipzfan]

Same here, I get beat deep, short, middle...

It seems no matter what play I use there is always a loophole that my opponenet finds everytime. I avg 24 pts a game and I still lose...my record was 10-9 or something but somehow it got erased and now I'm 1-1. Anyways anything I can do to not get owned defending the pass?