Josh Marshall's take:
Steele was hired because he was black. And the other truth is that now he can't be fired, in significant measure, because he's black. Because canning Steele now would only drive home the reality that Republicans were trying to paper over, fairly clumsily, when they hired him in the first place. So Republicans are stuck with his myriad goofs and pressfails and incompetent management and all the rest because of a set of circumstances entirely of their own making.