Solid plan, although I have no knowledge of these particular rookie quarterbacks.
I agree that we should draft two quarterbacks and go into the season with a young and inexperienced unit. No more retreads or failed veterans. I wouldn't be opposed to Matt Flynn, but I don't see a realistic/inexpensive way of getting him.
I disagree with cutting Ducasse. Both of the starting OG are free agents, and I think his overall level of play has definitely improved. He's young and cheap, he'll certainly have value on the roster.
Bottom line ... I want to see offense, offense, and more offense in this draft. It's 2013, offensive records are falling left and right, a team needs consistent offensive production in order to compete.