C. Lee said:
Consider this......the Stormtroopers of "A New Hope" are no longer the efficient killing machine "Clone Troopers" of the prequels. The immediate need of a tough disciplined, ask no questions, follow all orders, perfect military man Army....is over. The cost of cloning is expensive, but the initial Army was needed to overthrow the Republic. By the time of "The New Hope"...the Emperor needed a massive "occupation" force. For this he needed manpower....not high priced, efficient, great shots, proficient in military tactics clones....but low waged, fair shots, suit filling, out of work humans. Thus.....as Tantooine was unoccupied by the "Republic" in TPM....in ANH the "Empire" has set up rudemintary bases in this remote outpost. And what do you staff a remote outpost with....the best troops, or the dregs? So....most, if not all of the indiginous Troopers on the planet are the screwups, badapples, jailhouse rejects, and goofoffs of the Empirial Forces. So...not only could they not hit the side of a barn with a baseball from 3 feet away....but going door to door looking for some stupid droids just because that geek from the inner rim popped into town and said to, was interrupting their beer and chips time.
It was a small hole that was only noticeable because of the stolen plans.