By the sound of this quote from Doc Rivers, it looks like that is the way we are headed:

“We really needed a guy that can score off the dribble, that can create his shot,” he said of Terry. “I thought that was one of our big needs, and getting Jason we solved that need. He can score off the dribble, and him and Avery (Bradley) together will be good.”

While I am not expecting Lee to bring the same level of defense as Avery, my hope is that he "brings it". We will see what the offense holds, but I like it if he is able to bring it. I think Jason Terry will end up finishing games and I think he is good for about 25 minutes a game. It will be interesting to see how Doc splits the minutes for Avery and Courtney.

Either way I think the Celts will have the a super four-guard combo that will have to be reckoned with.