My local Taco Bell has no menu visible on the wall when you order inside. You must use the kiosk to order, which often freezes. There are very few people working, mostly very young that don’t speak English very well. I can’t imagine that location is making much of a profit.
The local In-N-Out burger place is jam packed though, with about twenty people working feverishly to handle the huge crowds. Great customer service too, and everyone speaks English fluently.
It’s not rocket science to have a successful business plan.
Long ago, my parents told me that vendors on the streets sold Corn husk wrapped hot tamales. They were good with beef. Maybe taco bell should make them and they could be heated up by mirowave and served hot. That might be good. Mexico makes all sorts of Tamales—Beef, chicken, shrimp, fish, even sweet ones with fruit.