According to a Big 12 official, the proposed rule change would prevent walk-ons who transfer within the conference from losing a season of eligibility. If approved next week during the Big 12's annual spring meetings, it would allow Mayfield to return to Oklahoma for the 2017 season. (ESPN.com)
He notes that the rule modification would apply to all non-recruited walk-ons now and in the future, not just Mayfield.
Asked if he believes the amendment can pass, Castiglione said he wasn't sure.
"That's really tough to say," Castiglione said. "I definitely think it should." (Dallas Morning News)