Shays is full of it.
What else can Brown do here? Blanco zealously guarded her powers throughout this fiasco. All Brown can do is report up the chain to Chertoff and Bush. And even Bush has limited powers in that situation, unless he were to invoke the Insurrection Act over the wishes of Blanco.
What Shays and many Dems are doing is deliberately obfuscating the powers and responsibilities of the governor in this situation.
I still contend they did all that because they had to know all this corruption was/is going to be exposed.