I am a patient man, so I will explain this again.
The RJ trade in isolation was a great trade. But what is the goal? To put together a team that can win another le (or have a legit shot) while Tim is a Spur.
If the Spurs look to fill the void with Big Baby, the net effects (handcuffing yourself out of 2010 with much more talent available) could be worse. A team with RJ + Baby is not going to win a le. The PF/C would be awful.
So, you have to look at all moves combined along with the opportunity costs associated with the moves. Hence, I do not like the RJ trade if it lead to Big Baby as the main big (using the MLE on him).