By Albert Breer In the wake of Brian Flores’s lawsuit, let’s examine what the league office has already done and whether litigation can be an impetus for change. Ron Rivera knows how a lot of coaches sympathizing with Brian Flores, in the wake of his bombshell lawsuit dropping, are feeling this week. Mostly because, at one point, he was that young minority coach: knocking on the door, year after year after year, without an invitation to walk through it. And while he’d suspected the act of Rooney Rule box-checking from teams before, there was one instance, a little over a decade ago, that stood…