From week 7 onward he was 13th in Completion Percentage Over Expected (CPOE, based on modeled player mapping), at 0.6% over expected.
From week 7 onward, he was 17th in Completion Percentage (67.2%) while being 10th in Air yards per attempt (average receiver targeted was 8.7 yards downfield).
He had a higher completion percentage in the back portion of the season than Derek Carr, Josh Allen, Deshaun Watson, Tua Tagovailoa, Aaron Rodgers, Lamar Jackson, Ryan Tannehill, and Russell Wilson.
They changed the offense considerably and he got much more comfortable. Now he gets to keep the same coach and coordinator and hopefully improve the receivers.