Fault lines in Germany's defence have been visible in recent games and Sunday's 1-0 World Cup defeat to Mexico should not really be seen as a surprise. "We have to focus on our strong points". The proof is in audio clips of his narration of the moment when Lozano placed a ideal kick to secure Mexico's early lead.
The measure of a team is how they respond to adversity, and it is what followed that will leave Germany's management team most concern and give genuine hope to rivals such as France, Spain, Brazil and - yes - even England.
He was also under fire at the Confederations Cup a year ago for rotating the team, especially after a lacklustre win over New Zealand and emphatic defeat against Germany in the semi-finals.
"We aspire to win a World Cup this time", said Miguel Paez, a 31-year-old who donned a Mexican wrestling mask in the colours of the national flag as he celebrated on Mexico City's main avenue, Paseo de la Reforma. From there, they had Germany rattled and fully deserved the goal from Hirving Lozano when it came.
For Germany, the 2014 World Cup champion, the result marked the first time in four tries it has lost the opening game of a title defense.
The reverberations after Lozano's angled strike had nestled into the bottom left-hand corner of Manuel Neuer's goal could be felt all the way from Moscow to Mexico City.
In reply to that, Osario introduced former Barcelona man Rafael Marquez, who played in his fifth World Cup aged 39, to add robustness at the back. Mexico are a defensive team who play counter-attacking football and like to frustrate their opponents.
Tricky winger Hirving Lozano scored the only goal of the game as Mexico deservedly beat Joachim Low's side 1-0 in Moscow.
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So what went wrong for each side, and what needs to be done to fix it?
"We will continue to look forward".
"We prepared for the use of Mario Gomez up front. Our team has experience of dealing with losses, the next match will be decisive and we have to win it".
Germany pressed in the second half but struggled to find the target. Other than that, though, Low's side had to settle for half chances, while Kimmich nearly forced an own goal with a nice cross in the 16th minute.
"In all due respect, in the first half we were the better team".
"El Tri", as the team is called in homage to Mexico's three-color flag, has failed make it to the round of 16 in the last six World Cups.
"We showed we have a bright future and I am very satisfied with what we did".