Originally Posted By: Defiant1
I suspect that they simply don't want to pay his rate, so they go with new faces that can barely draw.

As likely an explanation as any.

I was looking at an old Ordway-drawn Superman comic the other day. It had detailed backgrounds -- city buildings, cars, trees, people in recognizable outfits. Ordway (and the inker) obviously put some effort into it.

Most of today's Superman comics have a monochromatic background. Superman will be backed by a wall of light blue. Nobody could be bothered to draw anything behind him.