How can you put it on Wade directly? He's thr head coach whose expertise is Defense. His job is to tell his two most knowledgable employees on the QB position to "fix" it, or be replaced. Those twp would be Jason "Red" Garrett -- a former NFL QB, QB coach, and current Offensive Coordinator and Assistant Head Coach -- and Wade Wilson -- the Cowbys long-standing QB Coach and former NFL QB.
Sorry, but those titles mean something. These are two most knowlefdgable men at the QB position. It is THEIR job to reign in and develop Tony Romo. It's not Wade's job; Wade's job is to sed to it that they get it done, and if they can't, then replace them with someone who can. But even that is not Wade's job because Owner Jeery Jones is calling all of those shots.
So there's no way you can blame for this - sorry! It all falls on Garrett and Wilso, and if they aren't getting done then it falls on owner Jones. Now if you want to talk about who's responsible for miscues on defense, then we can talk Wade, but let's not unfairly drag him into the offense's mess. REALLY!