Rule update (in red) - pls read 04. Defense 04.01 - Moving Players Before the Snap On defense, shifting linebackers and the defensive line is permitted. However, moving individual defensive players before the snap and then switching off of them is prohibited. If you manually move a player, you must lock on to that player for the remainder of the play. You cannot manually move a DT or DE before the snap Constantly spreading or pinching your DL or LBs falls under the rules for mixing up your playcalling.