All S&D career development effort is now focused on developing BTC personnel.
Any S&D staff that puts on her PDS about how many HC10 people she helped would be PIPd even if not over 50.
All S&D group and individual goals are based on how many BTC persons they move into development roles.
If you are not BTC or HiPo, even if you are the most qualified, S&D will put you at the bottom of the list for every position. You just have to hope for scraps that HiPos and BTC refuse to take.
Perform your skillset for 25 years, become the recognized expert, and end up hoping for scrap jobs that S&D cannot fill with a BTC.
Peak of career at EM.