https://www.cnet.com/roadshow/news/elon-musk-takes-charge-of-tesla-model-3-production/

This news comes as no surprise given Tesla's woes of late, with Model 3 production numbers being lower than anticipated, downgraded credit, slipping stock prices and a recent Autopilot-related fatal Model X crash.

Field is being reassigned to the vehicle design team, according to Musk, where Musk says his talents would be better put to use. Field has been instrumental in his work at Tesla since coming on board in 2013.