The trenches are where champions are born as of late in the NFL.
If you can manage to piece together a great offensive line that is just as effective at pass-blocking as it is at run-blocking, you've got yourself the foundation for a contending team. Couple that with a great quarterback, several reliable receivers, and a superstar running back, and you're hard pressed to think of what can hold a team back from a Super Bowl berth.
That team could exist in Detroit, if the Lions are ready to spend big to make it happen.