If you could make 1 change...

[Warthog]

Change the owner.

Change of owner gets a new corporate and team culture. Bring in a new HC and a real NFL-experienced GM. Not a fake GM like Vinny Cerrato or Bruce Allen, who were just yes-men and frontmen who let Dan Snyder act as the GM from behind the scenes.

The winning team gets back the fans and politicians

Changing the owner gets you a new stadium, perhaps with a municipal / owner building deal.

I like the Redskins name. But if thinking of a change go to CHEYENNE. It is two syllables, so it fits in the old song. Name of a REAL WARRIOR tribe versus just a generic phrase. Get to keep everything else about the Redskins.