No offense to you, Bruce, but I expected that kind of response from this forum.
I have seen many people that started with TSA as a screener that had high credentials move quickly up the ranks and are now part of the FSD staff. I've seen screeners become scheduling officers in under a month as well as HR, admin officers, and even assistant FSDs. A teacher with that much experience could possibly become the next training officer for that airport. You never know, with someone fresh in the department can bring new and better ideas into the agency.
Although the TSA is not in your best interest, it is still a decent place to work. Provided you are put in an ideal environment, (i.e. good supervisors and management...yes, there are still some out there...)working for TSA can be great.