Lions Team Updates - Kitna, Marinelli

Detroit Lions QB Jon Kitna missed Wednesday's practice and his status for Week 6 against the Vikings is unknown. Per NFL rules, the Lions don't have to make an official declaration of his status until Friday afternoon. Kitna left the Week 5 game with back spasms. The problem must not have improved since Monday because the team sent Kitna for an MRI today. Rod Marinelli says he will not quit, the team will have to fire him if they want a change at the head coaching position. "I won't change," he said. "I believe everything I'm doing in the game of football and how it's being taught. I have 100 percent belief in it. Is it getting done yet? No. Am I going to go to work? Yes." Marinelli says he won't argue with owner William Ford if the decision is made to let Marinelli go. "I respect authority, which a lot of times that doesn't happen in this country. I look at authority and I take my marching orders from there."