Not that I blame Quin. If it's true the only team he's ever known didn't even offer him a contract, he has every right to be pissed. From the Texans' perspective (and as TDC has wisely noted), that's a fairly telling clue that Smithiak didn't consider Glover Quin to be a part of their future, much less irreplaceable.
In the meantime, we'll keep our eyes trained on Philadelphia to see if the Eagles come to terms with Connor Barwin, or if the Texans emerge as serious suitors for any other free agents. Keep the free agency chatter going in the Comments below.