The way I see things, Macri has to at least shade the truth a bit. There is no way a candidate that comes onto the stage and starts shouting "the house is on fire" is ever going to get an audience. A smart guy will figure out how to get to the microphone and get everyone to stand up and stretch their legs in the aisles before he starts shouting.
Macri scored big, I thought, when he was able to confront Scioli face-to-face and tell him, via question, that this government is lying to the people of Argentina and that things are not good, and that more people know it than the current establishment thinks. They've gone too far.
Macri stands a chance, perhaps, to do some good for the country if he gets elected and if he can convince the people that what is about to come, as far as whatever pain the country feels from the rebound of the K's time in power, is not his fault, but rather Cristina's. The first thing he has to do when he gets into office (if he's elected) is something similar to what Vidal has already done - "Argentina, we have a problem and it's worse than I thought". He has to bring out all the crap he probably already knows about and air it in plain daylight. INDEC lies, corruption, etc. It gives him a serious out to do some things that are necessary and may hurt more than people want, but won't necessarily put him in a bad position for a second term if things don't spin completely out of control and he at least stops the bottoming out before the end of his first term.
Scioli, on the other hand. personally, is in a bit of a political pickle if he wins. If he stays tight with Cristina in the beginning, and things go to hell before he can affect any positive changes, he either has to break with Cristina and start telling everyone it was her fault and he was left with the axe (and how many will believe him) or completely lose out (probably for good) in the next election, maybe to Cristina herself (who will say Scioli was the wrong choice to continue at the helm, she has to correct things). The only thing for him to do is to break with Cristina after the election and cry to the world the same things that Macri should do, then do something different than she has been doing in order to save things. Would he do that quickly or wait?
Either way, if either of them fails (i.e., whoever is elected), then look for Cristina to try for a comeback in the next elections. Either way, whoever wins will have to be a leader to succeed.
Bradly posted a very interesting, leaked CIA cable in another thread related to the previous presidential election and a possible face-off between Macri and Scioli at that time. The report had some good things to say about Macri, while reading between the lines about Scioli it made him look almost like a coked-up desperate man on the verge of losing his mind.
In the cable, Macri mentioned that he could see Argentina making significant advances economically in the next 40 years if the country could be led into a new reform era. It kind of makes Macri look like a sane, stable guy thinking of the future. Whatever the result, I personally believe that Macri is (relatively) honest and sincere and not so interested in continuing with the corruption currently inherent in so much of the country.
I like the sound of what Macri had in mind for the next 40 years. I could even see myself becoming a citizen in this country, if it became reform-minded. But I ain't holding my breath yet.