The former Tigre boss will make his competitive debut with los Cafeteros on Sunday against Peru, and the Atletico defender believes fans will see a more potent side than before
The former head of the Argentina national team took over at the helm of los Cafeteros following the sacking of Leonel Alvarez at the end of 2011, and has so far overseen one game; an impressive 2-0 victory over Mexico.
Sunday will see Pekerman's first competitive test with his new side, when Colombia take on Peru in Lima in their fourth World Cup qualifier.
Atletico Madrid centre-back Perea, who has played 62 times for his country, stated that despite Pekerman's short time in charge, differences in playing style can already be seen in the side.
"I think that a large part of the team's base that [Hernan Dario] 'Bolillo' Gomez left has been kept. After that Pekerman has been implementing a different type of concept in the team to make us more effective when it comes to attacking," the Europa League winner explained to Univision.
"Although we have only played one game, I can see we have improved a couple of aspects that I hope will be reflected when we play Peru. In particular to see the ball enter the opposition net, and to see us looking good in defence."
After taking on la Blanquirroja in Lima, Pekerman's men face another away clash seven days later when they face Ecuador. They currently lie sixth in the Conmebol standings, having picked up four points from their opening three fixtures.