FIFA official site has listed four reasons behind Peru's revival after what first seemed to be another disappointing qualifying campaign for the Incas.
Players extol Gareca
One of the reasons the portal gives for such a change in the team is that players themselves recognize their coach's hard work and responsibility for their resurgence.
"He's coached in Peru before, and he knows how good our players are. It didn't take him long to get us believing again, both on an individual and a team level. He restored our confidence," Peruvian midfielder Yoshimar Yotun told FIFA.com prior to the final two matches in the South American qualifiers.
Picking the right formation
Skills on the field
The third reason has to do with what actually happens on the field. The referred piece of writing examined the role of each player in the qualifying campaign by summarizing their skills.
Supporting each other
Gareca's squad have proved to be very supportive. They help one another when it comes to replacing their colleagues, without complaining when losing their spots in the starting line-up.