Very odd that Nick would "know" exactly how many interviews that Saints intend to perform one day after the season ends.. Seems like he is being told to put out a large number in the media.
It's almost like part of his job is to find out information about the Saints.
He didn't say it was exactly 12. He tweeted 12 in response to a question and later said 12 or 13. He also said 12 or 13 on his YouTube video before the game yesterday. I'm sure it's just based on the names he has heard they are looking to interview. They are already up to 5 or 6 names that they have requested or scheduled interviews with.