Before the commercialization of NFL venues, they all had traditional names.
Put yourself in the late 1980's and come up with these answers. Teams that did not exist during this time frame have been omitted.
Foxboro Stadium was called Sullivan Stadium from 1983-1989 and Ralph Wilson Stadium was called Rich Field from 1973-1999, so if you're going to stick with late 80's, you might want to fix those.
This needs more type-in options. We should never need to type in "stadium" or "field" for any of these, but you do need to do so for several. Also, you need to accept slight variations, like "Los Angeles Coliseum".