They're rebuilding. Seriously. At the end of last season, they got a new GM and a new president and they essentially annihilated the front office. I can't find the article, but they literally specified this, noting how they're recovering from major losses in personnel over the last two years, bad contracts, and all the consequences of Mayhew and Millen. Something about a five year plan to change the culture and shit was noted.
A fuckload has already changed in the background, and it's honestly amazing the team got to where it did this season. Making the playoffs is further than I expected.
Two years ago, the Lions lost Suh and Fairley, insanely integral pieces of the defense (which was #1 in 2014, at least part of the year), and additionally Reggie Bush and a plethora of roleplayers. Then last year, they lose Calvin Johnson, Rashean Mathis, Stephen Tulloch (the latter two ALSO being integral to the defense), and even more roleplayers.
The team is very young, and drafted well this year, but past drafts still poison the Lions some; their offense suffered from a fuckload of busts.
Additionally, they've been injured as fuck all season, starting from the first couple games. People shit on the coaching staff, but Detroit has made it to the playoffs twice in three years, the second time at the start of a rebuild.
They're bad, but they're one of twelve that aren't sitting at home next week. Where are the Broncos? The Redskins? The Ravens? The Bucs? They came a cunthair away from taking the division, too.
None of this is supposed to excuse them, btw, I'm just listing out facts.