Mary DiGiacomo Colins, the chairwoman of the Pennsylvania Gaming Control Board since 2007, is expected to step down from the agency within the next two months, according to sources familiar with the matter.

The governor is expected to replace Colins, 60, who is in line for an appointment as a senior judge within the Pennsylvania court system, with his chief of staff, Greg Fajt.

The move means the gaming board, which oversees the licensing and operation of slot machines in the state, would get its third leader since it was created 41/2 years ago, while also triggering changes at the top echelon of Gov. Rendell's senior staff.

Colins declined several requests for an interview. Through a gaming board spokesman, she released this comment yesterday: "There is still a significant amount of work to be done by this board and I continue to serve at the pleasure of the governor."