It is pretty amazing to reflect back on the range of opinion that existed regarding Rondo's trade value. There were many people that thought it was crazy to consider trading Rondo for only Nash and Randle. I was only luke warm about it to be honest.
I think this trade might have had a chance earlier on, say during the off season. Ainge felt Rondo was going to have his best season of his career. Maybe others did too. But instead of trying to trade Rondo, Ainge tried to "build around him" by going after Love and probably some other key players. Plenty of people seemed to agree that keeping Rondo was the way to go.
This all fell apart though because we got no one to come and play with Rondo and Rondo actually regressed and played poorly (relative to Rondo standards). Rondo's trade value crashed and a team like the Lakers just figured they would wait until the off season or lost interest altogether.