The Yellowstone ecosystem has a fixed amount of habitat. Once bears fill that habitat, the excess bears will probably wind up where they don't belong and are going to die.
The bear is either trapped or transplanted because it's causing problems or in some situations it may be perceived as a direct threat to humans and then shot and killed.
Generally, we're finding that food storage compliance is good. But we've also learned that people tend to get sloppy as they're breaking camp and getting ready to leave.
The dilemma is trying to set aside a large enough block of land or a large area where grizzly bears can live. Where humans will tolerate bears and where bears have some semblance of space where they are not constantly running into humans.