Chelsea beat Paris Saint Germain 2-0 on the night, Tuesday, at Stamford Bridge and drew 3-3 on aggregate in the two-legged Champions League quarterfinal tussle and therefore progress to the semifinal stage by virtue of the away goal ruling.
In order to secure their passage into the final four, the Blues did exactly what they had to do and captain John Terry reflected post-match: "We worked on scenarios [all week], what would happen if we go 1-0 up, what would happen if we go 2-1, 3-1 and get Demba - the big man - on."
It is a seemingly simple tactic, however, that preparation is precisely what salvaged Chelsea's status as a European force this season and one cannot help but compare Jose Mourinho's methods at SW6 to the ones Arsene Wenger practices at Arsenal.
Much has been made over the tactical inefficiencies the Frenchman has displayed this season, yet it appears a career-long trait at Arsenal - particularly in the Emirates Stadium era.
Even Frances Fabregas said that the main difference between Barcelona and Arsenal was preparation. Chiefly, that at Camp Nou they would partake in tactical training whereas in North London, the focus was on playing the Arsenal way and the Arsenal way alone.
Clearly, preparation has worked… for Barcelona and for Chelsea.
If Wenger wants to aspire to be a success, like Mourinho - who is addicted to it - then Arsene will have to change sooner, rather than later. Otherwise he'll continue to watch the concluding stages of the European Cup from the confines of his armchair, rather than orchestrating monumental victories from the dugout - like Jose.