OSU is not very good with JW Walsh. OSU isn't great with Wes Lunt, but they are knocked down another peg by having to play Walsh. It's not that he isn't any good, he just doesn't fit their style at all. I still don't think OSU will be very good when play them and aren't worried about losing to them, but their offense will look very different when they get Walsh back. A little better, but a completely different style.
That said, I wish we had Walsh on our team. He'd be a great guy to push Sams next year and be a backup is Sams goes down.