The new Tampa 2 defense is designed to reduce the number of big plays the Dallas Cowboys give up in passing game because the safeties play so deep.
Defensive line coach Rod Marinell also hopes it also creates more negative plays in the running game.
The Cowboys had only 35 tackles for loss against the run last season, 31st in the NFL. Tampa Bay led the league with 89.
"This defense is all about speed, quickness and up-the-field pressure," Marinelli said. "We want to be disruptive every play."
If his defensive line can create more negative plays, then the Cowboys will force more teams into third-and-long situations where the Tampa 2 scheme works best.