The Pros and Cons of Using Tax as a Capital Structure Agnostic Approach

Depreciation and amortization are non-cash charges. I don't think it's fair to exclude them frankly in a lot of cases, but they're costs. Tax is worthwhile to ignore because that's not up to the company really unless they want to do something really dodgy. And there are things that to my mind are less reasonable to ignore. What would you add?