TL;DR
Brazil's shocking 7-1 defeat to Germany in the 2014 World Cup semi-final was primarily due to the absence of Neymar (injured) and Thiago Silva (suspended), a shallow squad lacking depth, and the poor tactical choices and team selection made by Luiz Felipe Scolari.
Key Takeaways:
Marcello Casal Jr/ Agência Brasil - Attribution 3.0 Brazil