Trouble In The Flats

Okay fellas I am having a little trouble covering the flats. Normally when someone is abusing me in the flats I go Qtrs Normal Zone Blitz(putting my outside DB's in purple zones & QB containing my nickel & dime backs) but this leaves the deep middle of the field open. Now I am not asking for plays to help with flats D, but I am asking what concepts &,or, dynamics you use for this problem. If anyone has any insight into this issue please offer your feedback. Thanks in advance.

Flats are a trouble spot for sure. If you can tackle well though, you will negate big gains. I like to bring a lot of heat so the downfield wont be open and user the flat. This way I can make a big tackle behind the line and deter the quick throw often leading to a sack.

Flats are messy though for sure. Also make sure to SLIDE out manually, any player you put on a flat zone. You want him almost on the sideline, when the qb rolls out, he gets sucked in.