SF should just name it "Chavez", as a convenience. Lots of people are named Chavez. No rush. Shorten the signs as they are routinely replaced.

Going back to "Army" would be silly, especially since the U.S. Army never had a presence on that side of town. It was all Navy near the bay. The Army was up at the Presidio.

SF has this silly thing of giving streets secondary names. Who knows where "Herb Cain Way" or "Isadora Duncan Lane" is?

Numbered streets have their own problems. In San Francisco, 4th St. and 16th St intersect near the UCSF hospital complex.