Detailed Instructions: In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Q: Passage: In 2000, Schlesinger played in all 16 games for the fifth time in six NFL seasons and second year as the Lions' starting fullback. His 15 special teams tackles tied for fifth on squad as well. In 2001, the Lions named Marty Mornhinweg head coach and the team moved away from a power rushing attack to the west coast offense. The fullback, in addition to rushing and blocking responsibilities, can also be more involved in the passing game. Schlesinger finished the 2001 season with single-season career highs in rushing attempts (47), rushing yards (154), rushing touchdowns (three), receptions (60), and receiving yards (466). On the year Schlesinger rushed for 16 first downs, the only season of his career he accumulated a double-digit total in the category. For his efforts during the season, he was voted the Chuck Hughes Most Improved Player by teammates and was also voted onto Howie Long's Tough Guy team. He was also named to the 2001 All-Pro Team by Sports Illustrateds Paul Zimmerman and to the College and Pro Football Newsweekly 2001 All-Pro Second Team squad. In 2002, he finished the year with 139 rushing yards and two rushing touchdowns along with 35 receptions for 263 yards. He was an alternate in the 2002 Pro Bowl to starter Mike Alstott. He was also the Detroit Lions recipient of the 2002 Ed Block Courage Award.
Link Information: Previously he was the Ravens' quarterbacks coach, the head coach of the Detroit Lions from 2001 to 2002, and the Philadelphia Eagles offensive coordinator from 2006 to 2012. Question: What was the prior position of the Lions' head coach that was named in 2001?
A:
Answer: Ravens