You could certainly deal both Ray Allen and KG to contenders or near contenders. Ray can certainly still bring it and KG would most likely be a brilliant 6th man. I want to see them play the rookies and young players to see what we have.
Yes, I am advocating letting the season go. I do not see the benefit long term in barely making the playoffs and missing the lottery in a banner draft year.
What would a first or second round playoff loss do for us exactly?
Ray, yeah, I think you can get value for him (but probably less value than he actually gives you, even resigning him for another couple years). I think Danny will and has been listening on him, but the deal has to be right, and he can't be giving up their cap space unless he is getting a real building-block...which I am not sure he can get for a 3 month rental of a guy like Allen.
KG, I just can't see it. He makes so much money, and has become so mediocre that there are incredibly few scenarios where a trade could match up. Basically, he would have to be traded for someone else who is paid like a star, and there are not many guys like that who are not either not going to be traded for a guy like KG, or a guy on a terrible contract that the C's would have no interest in.
We are in the process. This is a transition-season. We have tons of expiring contracts - just gotta wait it out
Bridge year! 

That is absolutely what we are in. I know it has a bad connotation because of the Sox, but it is what it is. They are not going to tie their hands to reload this summer, by making a shortsighted move right now.