Adam Gase was hired by the New York Jets nearly two years ago to help develop Sam Darnold.
More than halfway through his second season, the Jets are winless and the third overall pick from 2018 has failed to develop.
"I came here to help him, help him develop his career, and we haven't been able to do that," Gase admitted.
Gase said he hopes Darnold can finish 2020 on an upswing.
"That's why every game is so important," he said. "Keep trying to help him grow, keep trying to help him develop and see things the way he needs to see them and play the way I've seen him play in certain games."