Herard never played a game for the Terps.
Durkin said some policies have changed since Jordan McNair’s death in June.
Reports say McNair died from heatstroke, which medical professionals say is fatal only when not properly treated.
McNair’s family has started a foundation for heatstroke awareness in his name.
Evans’ base salary is more than $100,000 above that of Kevin Anderson.
The university said coach DJ Durkin was at the May 29 practice where McNair collapsed.
Dodd was arrested Thursday in Atlanta.
The subpoenas regard an unnamed former player, Maryland assistant coach Bino Ranson and former recruiting target Silvio De Sousa, who attends Kansas.
Jackson followed up a breakout freshman year with a disappointing sophomore campaign.