Agree.
In my opinion, Turiaf, not Scola, appears to be the best choice for what the Spurs need. As much as I like Scola, and there's no doubt that he is the best and most skilled of the bunch, it just makes no sense to bring in a guy for the minimum if he is unable to address some of the basic deficiencies and needs that the Spurs have. Three of which are defense, shotblocking and rebounding. Scoring is always nice, but for this team, it shouldn't be the priority when choosing a big from this list.
Knowing Pop though, he's probably salivating over the remote possibility of getting Scola on the cheap. Pop would certainly be willing to overlook his defensive liabilities. However, I think that would be a mistake.
Now, if they could add Scola while subtracting Bonner, then you're doing the frontline a solid.