The Copa America has gotten off to a rather interesting start with one clear message -- there is no true favorite.

Of the six games that took place, only half went according to plan. Yet no one would claim that those results were easy. Chile won 2-0 over Ecuador but struggled in the attempt. Uruguay barely topped a supposedly poor Jamaica. Even Brazil did not score the winner over Peru until the second minute of extra time in the second half.

The other three games featured upsets that nailed the point home -- no one is going to get by this tournaments without trouble.

Here is what we learned from the tournament so far after the first set of games.

Radamel Falcao experiment must end for Colombia

Colombia's shocking 1-0 loss against Venezuela was not Radamel Falcao's fault. Let us be clear on that. The captain, however, had a grand total of one shot at goal, and it was not even on target. He had 29 touches on the night, second worst on his team (he played the full 90 minutes!).

He was not the game changer he once was and should not be allowed to start anymore for Colombia, regardless of his status.

While Falcao was one issue, the reality is that Colombia looked lost against a structured Venezuela team that disrupted the team's attack and did not give any space in the midfield. James Rodriguez, who dominated the World Cup last summer, was anonymous for most of the night. Carlos Bacca, he of the 28 goals for Sevilla in 2014-15, was absent.

The only forward player who looked remotely involved was Juan Cuadrado.

Aside from him Colombia's attack, which moved everyone last summer, was a shell. A new strategy is needed or Colombia's tournament potentially ends on Wednesday.

Argentina disappoints with a lack of balance

Imagine this scenario. A 2-0 lead at half time against a team largely considered a minnow.

That was Argentina's situation. Most teams would have shut the game down and played for a 2-0 win with minimal damage. Caution would have been the word of the day.

Not for Argentina which refused to slow the game down against Paraguay and instead kept looking for the killer blow. It never came.

What did come were two goals from the opposition and, with them, the loss of two points.

Lionel Messi scored a penalty goal but continued to look out of place for him national side.

Uruguay could play for a tie in the next game knowing full well that it could essentially clinch them the top spot in the group if all goes well.

Brazil is too dependent on Neymar and Willian

Brazil beat Peru 2-1. However, a 92nd minute goal was needed to do the job. Moreover, the goal came as a result of one moment of pure brilliance from Neymar who essentially put a pass right through the heart of Peru's defense to a wide open Douglas for a tap in. That came after Neymar hit a cross bar earlier in the half and almost a full 90 minutes after he scored the first goal for Brazil in the fifth minute of the game.

The big lesson? This team relies heavily on its superstar to lead the way. Most of Brazil's dangerous chances and creativity came from its main man.

Of course Willian deserves credit as the Chelsea man was everywhere, creating buildup from the flanks and being a true nuisance for his nation.

Aside from these two stars, the offense was largely disappointing. This could be a bad sign moving forward.

Then again, it seems that all the reputable offenses heading into this tournament have been stagnant.

Minnows are not really minnows

Given the way they took on Brazil, Peru should be seen as a team with the potential of getting out of Group C. The team knew how to retain possession and shut down the middle of the pitch to recover the ball. The lack of quality of front hurt the team a bit, but Peru should not be overlooked.

Nor should Venezuela, which despite its lack of star power played a disciplined and intelligent game plan against Colombia. The roughhousing could be costly later on, but it disrupted the pace of the Cafeteros and kept the game out of the creative stars' hands.

Bolivia shut down Mexico, though that had a lot to do with Mexico playing poorly while Jamaica could have shut down Uruguay with some more luck.

However, the prize for resilience has to go to Paraguay. The team was looked down on as one of the group punching bags but fought back against Argentina and claimed a huge point. The team was quick in transition and really looked like it could have had a chance to pull off the complete upset.

This tournament is shaping up to be quite the story with no one safe.