Lyn, that's what's so wonderful about the whole thing... the worms till the leaves into the garden for us!
DH has been asking me if the garden is dry enough to till up and I've been debating the whole thing -- last year I
couldn't till it up because the previous fall had been so rainy and wet and the spring was again rainy and wet, and I was really pleased with the results. But I thought I might till this year, if it was dry enough... which it actually is, but I just don't see any reason to do so.