On the Ross Tucker Football Podcast, Greg Cosell was saying that the Lions on third down played with seven DBs, doubling Gronk with a CB and S and putting CB/S hybrid Quandre Diggs on James White after an edge rusher chucked him (the "bullseye" strategy the Patriots used against Marshall Faulk in SB 36). Basically, they dared the Pats to beat them with Hogan, Dorsett, and / or whoever the fifth "skill" guy was, obviously those guys couldn't do it. Of course, early down ineffectiveness putting them in these third down situations was an issue, too.