Except that it's the whole pipeline. What fraction of OC/DC/ST coaches are minorities? Very low. What fraction of position coaches are minorities? Not much higher. You can't force an owner on a one-off transaction (the HC hire) when they might
quite reasonably claim that the demographics of qualified candidates are themselves just as skewed. Particularly on the most important hire in the entire organization.
Any league initiative would need to be, effectively, affirmative action in the entire coaching pipeline, with special resources and support available to minorities interested in coaching, and special incentives open to the teams, and it would take a decade. That's not a reason not to start that - they should put some sort of scheme in place along those lines - but it's a reason not to overreact to one year, when it's really
every year, and systemic.
edit: firing Goodell and replacing him with Condi Rice or
Ray Anderson (or hell, even Troy Vincent, god help me) would also be a positive step, because it would mean more of those thoughts would occur to the person in the seat that can actually do something about them.