Answer:
Pavers should demand some assurance of performance from the seller.
If Excavation only bought Earthmovers assets and not the whole company, then Pavers should request Earthmovers to give assurance of performance.
The problem that Pavers faces is that when companies only sell their assets and not the whole company, they usually do it because their liabilities are too high and it's not certain that they will keep operating. That way the buyer (Excavation) gets the assets and the seller (Earthmovers) the liabilities.
