The changes will mean the legal drama will likely extend beyond its planned season two budget, a fact that sources note is becoming increasingly worrisome at Amazon. That brings the per-episode cost to almost $10 million per, and the budget overage to about $65 million, sources say.
The retail outlet and streaming service previously indicated Goliath was its most-binged show in its first month of release. It was also Amazon's first show to score a straight-to-series order and avoid the pilot-voting process. Thornton earned a Golden Globe for his performance.
Goliath becomes the latest Amazon show to see a showrunner change, joining Man in the High Castle, Bosch and Sneaky Pete.
A premiere date for season two has not been determined.