ATN planned to drill 12 holes by september and reported back...

ATN planned to drill 12 holes by september and reported back after 2 holes were drilled. Basing on the results of the 2 holes, the project was downgraded by management. Prior to this, they were very bullish, keeping up with instalments and progressing on an optimistic level intending to have more equity on the project.Why the sudden change in expectations and how do they determined where to drill.What is the next results going to be? DYOR