This was the first time that Atleti had beaten Leganes at Butarque in LaLiga Santander.
"We needed to win. We went looking to win the game in different ways because the game lasts 90 minutes," he said.
"That's why we changed the system as we looked for a solution.
"Leganes approached the game how they wanted to, but luckily we knew how to overcome it.
"I like to know how to suffer; games where it's divided in different moments, there are some where you have to suffer.
"The team handled the lead better than against Getafe."
Now there is a claim for Vitolo to gain a starting spot after his impressive cameo appearance.
"The freshness of Vitolo and Marcos Llorente gave us something we didn't have until then," Simeone responded.
"A goal doesn't earn a start. Instead, consistency and hard work."