Brady > Dorsey and its not even close. Daboll on the other hand was very good moving the football with a vertical passing game. Ideally an O that can do both allowing one to compliment the other becomes very hard to defend IMO.
The brain trust game plan by committee is not a bad idea IMO. Brady stays OC with say Ryan Fitzpatrick as a consultant/ good example to sprinkle a vertical passing game into the O works for me.
Use Diggs like S J was used back in the day under Chan Gailey...