Really? This is crying for the "it was better before" without any reason. You want to remove the only thing that makes Shadow Priests special and turn the spec into a resource builder/spender like 80% of the other classes in the game. We are lucky to be one of the few specs that are actually unique and you wanna get rid of that.
If you want a general resource builder/spender build go play one of the other +20 specs currently like that.