Problem bears are created by people
Black bears are opportunists, always on the lookout for "easy" calories. Once they find human food or garbage (if they become food-conditioned), they continue to seek it out from backpacks, picnic tables, coolers, etc. If they become accustomed to humans, their natural fear of people fades and they take more chances to find food rewards. These "spoiled bears" are unpredictable and may be aggressive.
Unfortunately, there is little that can be done to manage habituated, food-conditioned black bears. These bears often pay with their lives for human mistakes. The only true solution is not to create "problem bears" in the first place by making sure all food, trash and other possible bear attractants are stored properly.