No that is not it.
There are 2 different meanings for exploit in FM.
Exploit the middle, flanks.. a legitimate strategy in FM where you use the space on which the opponent is weaker or you have better players.
And there is the bug exploit such as the corner or bullet throw exploit where the...
lol.. moyes.. tactic...
But seriously put cross more often on your wingers. I've also had that when your wingers are on support they dribble less and cross more.