First, despite widespread myth, it is not a screaming Indian, but a smiling/laughing one.
Second, since posters in this thread have come out and said Native Americans should speak for themselves, one did:
Atlanta might just be best ditching the Indian theme all together. Gone are the tomahawk chop, chief noc-a-home and others. Change the tomahawks to Halligan Bars and Axes and keep the name Braves as a tribute to firefighters.