It depends on what you want to stage. If you want to stage complete trains to go out on the mainline, it won't work. If you are looking to stage cars in a yard to be made into a train, it might work. I think it would work better if the switch on the diagonal that is in the curve on the left was moved closer to the yard to make a run around track. Where do the red and blue tracks go? If what you have drawn is the whole layout, you have a lot of yard with no industries. If your layout is much bigger, this yard may be too small to be really useful.