Takeaways: What's ahead for Oklahoma, Indiana, Penn State and more

Here is a 158-word summary of the news article: The article discusses key takeaways from Week 7 of the college football season, focusing on several prominent teams. For Oklahoma, the main point is their close win over Texas, which raises questions about their ability to challenge for the College Football Playoff. Indiana's upset over Penn State is highlighted as a significant result, showcasing the Hoosiers' potential this season. Penn State's loss is analyzed, with the team's struggles on offense and defense being noted. The article also touches on Ohio State's dominant win over Michigan State, solidifying their status as a top contender. Additionally, the article covers Clemson's close victory over Boston College, noting the Tigers' ability to win close games. Finally, the piece discusses the impact of injuries, including the loss of star quarterback KJ Jefferson for Arkansas. The summary covers the key points and notable performances from the week, providing a concise overview of the most important college football storylines.