This is Frank Eliason‘s last week at Comcast. The poster boy for leveraging social media for customer service and, in the process, turning around a struggling company’s image, will no longer be @ComcastCares on Twitter. Eliason is moving on to Citi where he will head up their social media efforts.

On the surface, it’s a neat, new plum job for a great guy who is a leader and pioneer in corporate social media. But there’s a lot more to the story because it writes another chapter in the personal vs. company brand playbook.