Greek philosopher Heraclitus is famous for having said that "[c]hange is the only constant in life." Who knew that he was such a huge NFL fan?
Every team in the NFL—including the Detroit Lions—is continuously in a state of flux. Good players (and bad players) come and go, and there are always a number of guys who are facing make-or-break situations.
The following slides outline six such Lions. No player on this list is guaranteed a future with this team for a host of reasons, ranging from performance to availability. The only way to ensure continued employment in Detroit is with a big 2015.