While I don't agree with the way Elon has been making this move, it's sure looking like he's trying to clear the place out so he can establish a new culture. These policy changes are likely to scare mobile, top-performers off to other companies. This likely clears out a lot of internal dissent and heal digging to make room for new "top performers".
I wouldn't be shocked if we see new "top talent" hires in 3 to 6 months then _actual_ new innovation in 6 to 12 months.