As soon as Rondo starts hitting 70% of his free throws, the ball's in his hands. That's where his bad shooting has hurt us, it's hard to let him handle the ball in end-of-game situations since they'll just foul him, and he's not much of a threat to hit a jumper.
But, once Rondo starts hitting 70% of his free throws (like an NBA point guard needs to, at a bare minimum), the rock'll be in his hands.
Not so sure about that. Doc would be much more relieved if Paul or Ray had the ball in his hands because even if Rondo shoots at 70% some day, both are better free throw shooters, especially under pressure.
I also think that Doc ensured the ball was in Paul's hands because if it was in Rondo's, the Grizzlies could have done a great ball denial on all the other 4 players to force Rondo to shoot from midrange or from three ; on the contrary, when Paul has the ball in his hands and brings it up on the court, he is much more dangerous in that situation since you can't foul (well you can, but you're not happy to do so) and then, after midcourt, he can pass the ball but first and foremost create his (game-winning or dagger in that situation) shot. So, the opponent has an easier way to defend the possession if Rondo has the ball, I think.
However, if Rondo keeps progressing on shooting like he is doing this season, he will be more trusted in end of game possession but he's not yet already, although he has shown excellent flashes against so far, most notably against the Wizards.