I know it wouldn't be quite the same without Rick but there isn't much that can be done about that.

And Jon Carin isn't Rick, no but does a very good immitation, as can be heard on "Learning to Fly" and some sections of The Division Bell. He has also toured with Floyd, Gilmour and Waters so knows the songs inside out and has spent enough time playing along side Rick to be able to pull it off.

Snowy White is no Gilmour, but that doesn't stop him from sounding like a superb mimic on Roger's The Wall Live tour.

My point is that with Rick gone, Carin would be the best person to play his parts and do most justice to Rick's parts in the songs.