It can be done. You would have to do it in phases.
I don't know if you watched the MSG renovations on TV., but the work was done over three years without interrupting the Knicks or Rangers seasons.
There was a lot of (prep) work done behind the scenes, so when the work started, they could move quickly to complete critical projects before the start of each season.
They gutted the entire seating bowl and replaced it one summer.
Another season, the lock rooms were remodeled, and so was the media area.
The last summer of work was the sky bridge and other loose ends that needed completion.
I don't think Rutgers has anything near what MSG needed to go through. The closest might be expanding the front of the building.