Field had been consolidating power at Tesla, since leaving Apple to join the electric automaker in 2013, the Information reported.
Tesla's future as a mass-market automaker hinges on efficient, automated production of the Model 3, but the company has faced significant issues with production speed and quality of parts.
Musk said in July 2017 that Tesla would probably be making 20,000 Model 3s per month by December, but the company then downgraded those expectations to 2,500 per week. Earlier on Monday, Jalopnik reported that Tesla was making 2,000 Model 3s per week as of the end of the first quarter.
Model 3 production issues aside, Tesla has faced an onslaught of bad news in recent weeks. The company on Thursday announced a voluntary recall of 123,000 Model S vehicles because of an issue with a power-steering component. And last week, the National Highway Traffic Safety Administration launched an investigation into the role of Tesla's Autopilot in a crash that killed a driver in California. The NTSB faulted Tesla in a prior fatal Autopilot crash.
Read more about Tesla from the Information.
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