defense on NG is all about nanos except if u have great users (like myslef :p lol)...but yea for real u need a good blitz.

most good blitzes on NG are nanos as BiLLs39 said. you just need to confuse your opponent by mixing up your defensive schemes and coverages.

if ur looking for good coverages try different variations of cover 3's....be careful cuz u can get beat deep by it....i like to double outside receivers up as well by having double Z plays or something like that....again go to the defense section and just use a few nanos...ull need em in here

there is a really nice run d i know if u know ur opponent is going to run the ball but its from the tml d playbook so idk if i shuld post it. and yea i also have nice user skills so that helps also

another thing i forgot to add^^ is if ur opponent is running to the same side all the time just user controll ur lb or something and just watch the rb manually