Jerome is not gone, he moved over to engineering.
Would you mind providing the source of that information?
From the September SEC Quarterly filing:
"On August 4, 2015, Jerome Guillen, our Vice President, Worldwide Service and Deliveries, notified Tesla that he will be taking a leave of absence until December 31, 2015."
"Recently, our Board of Directors reviewed the job responsibilities of our senior management. On August 6, 2015, the Board determined that Mr. Guillen no longer has reporting requirements under Section 16 of the Securities Exchange Act of 1934, as amended (Section 16)."
This seems to indicate that Jerome is neither a senior executive, nor is he currently actively working at Tesla Motors in any capacity.
Larry