In some business situations, time is of the essence. If a competitor rolls out a great new offer that requires you to change your systems, and you have to match the offer or lose market share, then you can't wait for perfection. In this sense, business is like war where you invariably go to war with the weapons you have and not the weapons on the drawing board and there is always an insane rush to deploy the next generation of weapons even though the might have teething issues (e.g. the Germans and the Panther tank)