Graham Spanier (left) with Joe Paterno in early October. (Gene J. Puskar / AP)

Quoting an anonymous source, the Express-Times reported that Executive Vice President and Provost Rodney A. Erickson was the likely choice to take the job on an interim basis, with the university launching a national search for a permanent replacement.

The board, according to the Daily Collegian, is expected to meet at 7:30 tonight.

Earlier Wednesday, Coach Joe Paterno announced that he would retire at the end of the season in the wake of the child abuse sex scandal that has shaken the school. Spanier, according to a grand jury report, knew in 2002 that a graduate assistant had witnessed former defensive coordinator Jerry Sandusky sexually assaulting a young boy in a Penn State shower.

Two other administrators who were told of the 2002 incident — Athletic Director Tim Curley and Gary Schultz, a vice-president for business and finance — stepped down Sunday and were charged with lying to the grand jury and failure to report a crime Monday.