It's the difference between a no-nonsense supervisor leaving one company and coming to another. His routine may have worked where he used to work because of his longevity there. But it may not work in his next job because without a "feeling out" period (and that doesn't come immediately), employees are going to consider him an SOB no matter how successful he was at the other place.
Unless Ray Lewis is going to knife them or something, the players don't have to listen to him. They're going to probably take the attitude, "Yeah, you were big stuff in Baltimore, but you're in Dallas now. I don't know who you think you are."
What do you mean by "took over?" The Commanders were a pretty good defense under Greg Williams. Fletcher was just an added part.
Besides, do you know if Fletcher was yelling at fellow players telling them to get a fire lit under their behinds or else?
I think the reason Cowboys fans want Ray Ray is because they think he's going to light a fire under this defense. Well, how is he going to do that other than verbally? By his play? We have Ware for that.
Now, I could be wrong. But I just don't think you enter another team's locker room and become the anointed leader just by your presence. Ray has a history with the Ravens. When a player joins the Ravens, they know that this is Ray's defense. I don't think the same will be the case with Dallas.