Nothing to do with tactics or internet lag... that's the scripting/handicapping/rubber banding --->>
https://www.youtube.com/watch?v=cULKosF5iVE
People complain about it in other EA sports titles as well... in NHL they call it "Ice Tilt".
In Madden it's commonly referred to as "Equalizer"...
http://www.muthead.com/forums/madden...-speaks-out-on
Dunno what those morons are talking about though... it was officially confirmed by EA themselves back in 08 in an advert (link above)
The company is hardly going to admit it now... not when they have a "buy better players" mode in there. Ignore them... people on the internet... generally speaking... not very sparky.