Why would you have to? For Football playoffs, covering up the name and logo wouldn't be that big of a deal. Hockey is a much bigger problem, but it only effects the NCAA playoffs so UND would not get a bid for another regional for the frozen four, but could in theory still host the frozen five. It is possible, but very unlikely that the NCAA would give UND a bid for a regional beyond the current contract anyway. I could be wrong, but I don't think the NCAA is exactly in love with Grand Forks and it's ability to bring in, and have space for a bunch of people. I don't doubt the city will do a good job, but I think the NCAA liked bigger cities to host such events.