By angle I assume you mean the rise of the seating from bottom to top.
Yeah, the way the current stadium is built. Any additions, would probably look more like Regions Park in Hoover. Which I don't think looks bad at all. However, I like the open concourse look of Autozone, Trustmark, Dickey-Stephens (N. Little Rock) and etc. better. But I don't think we can achieve that look without a complete rebuild. Because every baseball stadium I have seen, with that look, the playing surface is below ground. Obviously, DNF is at ground level and the stadium is above ground.
I say keep the main structure. Tear down the current press box and sky boxes. Rebuild similar to Regions Park. Have a nice upper level press box, sky boxes with outdoor seating, and extend the grand stand down the lines. Again, see Regions Park.