Jerry Jones is undoubtedly thinking this lends more credence to his selection.
Having him in the green room with him only makes it more obvious. It was a nicely orchestrated move, however. There is nothing like an obvious example of grandstanding to smooth over what should be a very questionable hire.
I am sure some credit Turner with the fact Irvin was great. That is foolish. But sadly, there are some fans who lack perspective that believe that if he did it with the likes of Aikman, Irvin and Smith, he can do it again with the likes of Romo, Owens and Jones.