I think Macri is on the right path; he just needs more time to show the effects of his current and future measures.
He is definitely not on the right path.
Macri's economic vision made numerous assumptions about the world economy that used to be true, but are not true any longer. First and foremost, he assumed that opening up the Argentine economy would provoke this rush of investment, without ever truly understanding why the Argentine economy insulated itself in the first place.
Macri believed Argentina's problems -- depressed exports, inflation, currency devaluation, decreased FX reserves -- were only Argentina's problems. Nonetheless, if we look at foreign exchange reserves regionally, which can be used to make inferences about exports, inflation and currency devaluation, we can see that this is certainly a regional problem (also global, although not shown below):
https://www.google.c...&ind=false
The CFK administration abandoned the agro export-led growth strategy (Macri wants to bring it back) that it and many other countries in the region had adopted because China was no longer a willing buyer. China stopped buying soy beans, copper, etc. from the region firstly because U.S. imports from China stagnated after 2008. This was a short lived drop, however. To maintain growth, the Chinese injected billions of dollars in economic stimulus into the economy after 2008, which along with stimulus in other countries, helped Chinese imports rebound. However, the effects of stimulus faded around 2011-2012, which is why the price of commodities in general have plummeted since then.
The CFK administration instead aimed to sustain and increase demand locally given that it could no longer count on its most important trade partners, China and Brazil, to sustain demand. If your biggest trade partners won't buy your exports, what else can you do? You can search for new trade partners, but remember, this is a global problem. Argentina fell because both Brazil and China fell, and Brazil fell because China and the United States fell, and China fell because the United States and Europe fell.
I think CFK would have preferred to continue along the same path that made her husband's administration successful (economically), but she figured out what Macri seemingly hasn't.
Somehow, Macri feels that he can defy global trends. He will fail -- and especially now as he was banking on the U.S. to open its market to Argentine goods. That was always a far-fetched idea simply looking at U.S. trade data, but with Trump it's far less likely.