Jaka Bijol struck a 93rd minute winner on Monday night.
Sottil later said: "At the end of the first half I didn't have much to say to the team, only that we would have to move the ball quickly and score, the boys did so and so congratulations to them.
"Yes, my changes have been decisive. The matches are built in a hundred minutes: I start who I consider most suitable to put the opponents in difficulty, but the opponents must continue to give rhythm, with different characteristics. I have a very competitive squad, who entered made the difference.
"The team is predisposed to sacrifice, which I demand. You work hard, you build a mentality, not only conditional but also moral. I demand concentration in training, as if it were a match. The credit goes to all the staff with whom I am lucky enough to work. And then the boys have quality: today's victory is organisation, play and mentality."