Companies are very bottom line focused. Even after a high level scope of work is determined, the most appealing bids often are on the lower end. Even if some form of a deliverable can be achieved in a given number of hours, it often does not yield the correct one. Smarter bids allocate more time for damage control, error correction, and proper testing. For low bids, especially really low ones, one has to wonder what part of the product suffers.