It isn't going to work unless TSA comes to grip with discipline issues. Zero tolerance for pax has to be accompanied by zero tolerance for TSO misbehavior. As I have pointed out elsewhere, one unruly pax can impact quite a few people, but not as many as one unruly TSO can impact on a daily basis.

There are people in the current workforce who are not going to change. They will continue to mis-treat pax, they are and will continue to be a discredit to the organization and their actions will continue to tarnish the image of their co-workers and the organization.

I, too, worked in an organization that went through a couple major shake-ups in the last decades. Things didn't even begin to start shifting until they finally fired the vice-president of a division. Even then, it took a decade.
One thing that was intstrumental for us: word (and teeth) finally came down from the top. In essence: it is a pain to fire anyone, but you managers are paid the big bucks in part to deal with discipline. It became a major focus - dealing with problem employees. TSA needs to develop the will to do the same.

I don't want to be dealing with unfettered rogue TSOs exercising their version of RBS.