not even reading thru this thread to see the responses, but it's easy... the Lions aren't trading him for short of a stupid haul. They didn't draft Sewell to be a replacement for him at LT, they drafted him to have 2 stud tackles on each side, period.
So they aren't looking to dump him on the cheap, regardless of records, and I don't blame them, if you can get 2 elite OT's in this league, you do it, end of story.
Not the worst feeling, but bad. If we had barely held them off in the 2nd half it would be worse. The fact the team showed resilience, even if it was against an undermanned Texans team, mitigated a bit of that pain.