Sepia, I was actually working on this when your post came in....
Since 2004....
Rivals lists 316 recruits from Cincinnati....
Ohio State has offered 13 of those 316 (4.11%)....
Ohio State has signed 5 of those 13 (Schoenhoft, Smith, Moeller, Clifford, Posey), and has a verbal commitment from one other (Norwell)....
Notre Dame has signed one of those 13 (Rudolph), and has verbal commitments from two others (Hendrix, Welch)....
Michigan has signed one of those 13 (Mixon)....
Tennessee has signed one of those 13 (Martin)....
LSU has a verbal commitment from one of those 13 (Ware)....
One of the 13 is still undecided (James)....
UC has signed none of the 13.
I do not know of a single case where a recruit has signed with UC while holding an offer from tOSU. It may have happened at some point in the distant past, but I rather doubt it. Of course, Matt James may do so this year, so I guess that it's still possible for tOSU to lose a recruit to UC.
In any event, if there "aren't many Cincy players heading to cbus," it has nothing to do with Brian Kelly doing a "decent job of keeping some of the local talent going to UC" ... but rather it has everything to do with big-time programs signing a kid here and there.