Seattle coach Pete Carroll was excited when the Seahawks qualified for the NFL playoffs. He probably isn't as happy to be on Nate Silver's list of worst pro sports playoff teams of all time. (AP)

The Seattle Seahawks are not good. Yet despite losing 5 of their last 7 regular season games, they managed to win the NFC West, thus securing a spot in the NFL playoffs with a losing (7-9) record.  New York Times numbers cruncher Nate Silver argues the Seahawks aren’t just bad, they’re also one of the worst major professional sports teams ever to reach the postseason. Bill talks with Silver about his list of the top ten worst playoff teams of all-time on the Times’ FiveThirtyEight blog.