#4 Timo Werner's impact
Germany had plenty of runners through the game as Luca Waldschmidt, Marco Reus, Lukas Klostermann, and Julian Brandt all made plenty of attempts to run beyond the Estonian backline but were held up in their attempts. However, Timo Werner's introduction when Germany were two goals up really put the Germans in control as they sat deeper and the RB Leipzig forward was able to exploit the space that the Estonian backline was leaving behind them.
It was a perfect storm of the right timing to introduce Werner and his ability to find just the right runs and then punish defences with his pace that earned Germany the third goal. It also led to plenty of chances for Werner who looked dangerous every time he got on the ball.
Werner's introduction at a time when Estonia might've just gone for broke having been two goals down was a tactic not many managers might have employed, but Low's change was spot on.