Other tactics that have shown to be effective on occasion are misdirection plays that take advantage of the defensive speed and rely on the defense 'over-running' the play (such as the middle linebacker rushing to the line of scrimmage on a play-action pass), or overloading the safeties by having multiple receivers running deep routes, creating more targets in a zone than defenders. Recently, some teams have also been able to exploit the seam between the cornerbacks and the safeties, when the quarterback can throw a pass to a receiver in that seam faster than the safety can rush up to close it and cover the receiver. A recent trend is for teams to send a receiver up the middle, creating a mismatch against the linebacker in coverage. The popularity of the Tampa 2 means that offenses are now finding it effective to exploit the deep middle, where the safeties have to cover the most ground.