Dez is going to miss Romo, because tony would throw to him even if covered.
Anytime Dez had single cov Tony would throw to him, and a higher arching pass so it would be a jump ball.
Dak wasnt able to throw like that , and to him dak wasnt open. He did a few , and on some of them Dez caught it.
Tony also threw the fade or back shoulder better , many of Dez td's were the short back shoulder in the endzone.
So no Tony could mean less production from Dez.
Dak forcing the ball to dez with a normal pass, was 50/50.