When native soil is unsuitable for planting, the landscaping designer may require the native soil…

When native soil is unsuitable for planting, the landscaping designer may require the native soil to be excavated and removed. The excavated material is then replaced with imported fertile soil. Which subcontractor will perform the excavation work? Which subcontractor will haul the native material from the site? Which subcontractor will be responsible for importing, placing, and compacting the imported soil?