"It's your job to make the team happy," Schwartz said. "It's not the team's job to make you happy."
Schwartz said Young's actions Sunday negatively affected the Lions' offensive performance. Young was benched for the Lions' final three plays against the Packers, causing a sideline argument between the team's wide receivers coach, Shawn Jefferson, and its offensive coordinator, Scott Linehan.
"The thing about it is they were both on the same side of the argument," Schwartz said, via The Associated Press, "but in the heat of the moment, they ended up missing that fact."
Schwartz said Young lined up in the wrong spot on a second-down play in the red zone when Lions offensive tackle Gosder Cherilus false-started. Based on Schwartz's comments, we suspect more was at play here, including Young's attitude.
Young was sent home from the Lions' facility Monday. Schwartz said the second-year pro's future behavior will determine when he returns to the team.
Follow Gregg Rosenthal on Twitter @greggrosenthal.