The Star Tribune's initial report on a tentative deal for a Vikings stadium broke Friday afternoon. This first report discusses a couple of anonymous sources and the basics of the story: the cost breakdown of a new stadium, how much further a deal has to go, and the factors leading to or holding back an agreement (hospitality taxes, etc).
In their report the next morning, the Star Tribune has filled out more details while retaining much of the same information that was reported initially. The lead is virtually identical, with the only anonymity qualifier omitted from the lead and added later on. This is because Olsen and Kaszuba were able to find more substantial sources that could be identified, such asDavid Senjem, whose remark is inserted in place of Lester Bagley's refusal to comment, which has been moved down much further.
This new report also fills in more details of the agreement such as the increased cost to the city, presumably as Olsen and Kaszumba were able to talk to more sources. The second report also goes on to add whole new sections discussing the implications of the plan and what still stands in the way of an agreement.
This increased analysis and new information from substantial, identifiable sources in the update advance the news of the original simpler report.