I had a tree cut down in the front yard and the stump removed. Now the roots
and ( I think ) the stump down deep is rotting and making it hard to mow the
grass and mushrooms. Like stepping into a hole. I was thinking about tilling
the spots and removing the rotting wood, adding soil and planting grass
seed. Anyone know if this will work or should I just wait till it's all
rotten?

Thanks