Still no Republican challenger for Betty Sutton's seat

I've been watching the utter inactivity developing race in Ohio's 13th District in the U.S. House of Representatives, and I haven't seen squat from the Ohio Republican Party. Democrat blogger Scott Piepho (an eminently reasonable and likable guy) wonders why the GOP is leaving Sutton unchallenged.

Hello! Earth to Bob Bennett, Alex Arshinkoff, and Kevin Coughlin! When will one of you recruit a credible challenger?