Fresh sod is generally bad for a game, it needs to take root to be solid. Soldier field has done many an emergency sod placement, it's never turned out well.
The Vikings problem, they would need to have a whole other facility to enable the grass to keep growing in the winter. It would not be a cheap endeavor at all.
AZ has a grass tray system, so it's never fresh sod being laid out. The grass grows in interlinked trays that are brought outside so they can grow, brought inside on gameday. The system has only had great reviews. That's the nice thing about the desert. they control most everything about the inside and out other than the insane baking heat, which they then just bring the grass back inside so it doesn't get overdone in the sun.