I think there is some posturing going on with the Redskins. I might not be 100% accurate but I believe Campbell only started 6 or 7 games and ended up with somewhere around 10 tds and 6 ints.
Gibbs has been known to be loyal, as evidence by his loyalty to an aging, declining Mark Brunell before finally naming Campbell his starter mid-way through this season when Brunnell really started faltering tremendously.
Plus, with a playbook as complicated as Al Saunders', you probably need an offseason to dissect it as a #1 quarterback before you can adequately be judged, so its hard to see Gibbs drafting Russell.
Just my opinion though. I don't think anyone could ever really know what goes on in Snyder's head.