Divisions and conferences are required to make a final ruling on fall sports and championships by August 21.
Student-athletes competing in "high-contact" sports will undergo coronavirus testing at least twice a week.
"I believe that just being a wrestler wasn't enough."
Crowell previously led Miami (Ohio) to 208 wins over her eight seasons with the team.
Holland is the eighth newcomer to join the Nittany Lions this season.
McDaniel averated nearly 20 points per game for the Lady Lions in 2019.