Tracking is a sport where the people take the passenger’s seat. The dog is in the lead and is able to confidently do what comes naturally to it, and we must learn to trust in this ability. For some people, trusting the dog and letting it lead are two of the hardest parts of beginning work in tracking.
Is there such a thing as the perfect puppy? In all likelihood there is not. There is always something one might change in any dog (or person really), but the goal should be to always strive towards raising a puppy to be its most perfect self. This is hard work, to be sure, but it is not only possible, it is necessary.
The personality of a dog is flexible and indeterminate. Dogs can be exuberant or shy; friendly or hostile; fearful or bold; aggressive or passive or some combination of the above. These differences in personality may to some extent be determined by breed, or individual genetics, but for the most part it is based on how and to what extent each particular dog has been socialized.