Sharon was acqui-hired after Lamini failed to find product market fit, and she had to fire her co-founder Greg. Greg went to Tensorwave (another AMD play) and eventually quit there as well.
The way I look at it, AMD and others dumped $25m into a very early AI play that never was going to be successful. I don't fault them for trying.
There was no way she could even come close to successor of Lisa though. The grooming thing was a media play at best. Dr. Fei-Fei Li would be a heck of a lot more appropriate than Sharon.
Anush is excellent and turned around the software story. If he goes, the party is over.