The major difference on how teams evaluate offensive guards is if they play a zone or man blocking scheme. Offensive lineman in a zone scheme generally don’t need to be as physical as those in a man scheme, but there is not a hard set rule. Also, the offensive scheme will change the priorities for how a team values guards. Run heavy teams will want guards that can move forward and clear the way for runners. Pass heavy teams will want guards that can hold up against defensive lineman and linebackers.