Diaz led the Nittany Lions to a No. 1 total defense ranking with 3.91 yards per play.
The Nittany Lions are attempting to mirror their defensive identity to that of its offense.
McLane sustained an injury in the Nittany Lions' 6-3 win over Minnesota last Saturday.
The Nittany Lions will face No. 11 Ole Miss in the Peach Bowl.
The Nittany Lions head to the bowl game for the first time ever.
The Nittany Lions survived a late Minnesota comeback attempt to split the series.