Why dont the Redskins use audibles?

[JWsleep]

But if Campbell sees eight in the box against a run, can he audible to a pass? Why not?

Sometimes audibles are easier to execute--it depends on the D. In Saunders O, both QB and WR have to make the same read on the play--as we've seen, it can be done, and done well, but the skins have certainly not mastered it yet. Wonder if Gibbs' alterations of Saunders offense has made these options more difficult, by taking WRs off the field?