The Redskins have sucked virtually the entire time since he left after winning yet another Super Bowl. Gibbs, on the other hand, went on to major success as a NASCAR team owner.
Daniel Snyder, the much disliked owner of the team in the post-Gibbs era, tried Norv Turner, Marty Schottenheimer, and Steve Spurrier. Not much luck in any case, despite the fact that the latter two are all-time greats and Norv Turner has twice been a very successful offensive coordinator.
This season the breaks are all falling Washington's way. I conclude, in reverse Pat Robertson style, that the blessing of the Lord is upon Joe Gibbs and Dan Snyder was smart enough to hire him and get out of the way.