I don't think you can put drive into a dog, you can build off what they genetically have....and sometimes a puppy that shows little when young will wake up around 10 months and you'll see more. The term sleeper is used for pups like this!
Tug is great for building drive, tease the pup up for a toy and play, ask for commands before rewarding. But some pups aren't into tugging either, too inhibited.
As far as tracking, most pups need food/hunt drive to be successful, if they don't have it, they may not ever be enthusiastic about tracking. A calm demeanor doesn't really play into it as much as the willingness to search with the nose. Though slower, methodical tracking is better than dragging the handler down in a hectic manner.