Signing top players does not only strengthen your team, but it also weakens your rivals.
Real Madrid president Florentino Perez knows this better than anyone else, which is perhaps why he has recruited two of the best players of the 2014 World Cup and could sign yet more.
Toni Kroos was not Germany's best player in Brazil - Mats Hummels was, but there can be no doubt that the 24-year-old is a superb player who is certainly going to enhance Los Blancos's midfield. James Rodriguez's performances in Brazil convinced many of his quality and class.
Kroos and Rodriguez look like they will be followed by some others, maybe Radamel Falcao of AS Monaco, The Colombian has said that he is happy at his Ligue 1 club amid speculation of a move away, but Madrid have long been linked with the 28-year-old who when he moved to Monaco last summer was one of the two best strikers in the world (the other being Edinson Cavani).
Falcao is one player that Madrid need given Karim Benzema, their only recognised centre-forward, misses big chances in big games, but Kroos and Rodriguez are not players who the 10-time European champions actually required.
They were signed because they were available and because Madrid could sign them, but perhaps there is a stronger reason behind their recruitment: an effort to become the first team in Champions League history to win it back-to-back.
For 12 years Madrid had been desperate to win La Decima and appointed a number of managers to do, including current Chelsea boss Jose Mourinho. But they failed, until last season when under Carlo Ancelotti they eventually did win the European Cup for the 10th time in their history.
But Madrid being Madrid, president Perez has now set his sights on their 11th European Cup. And to do that, he knows, he needs to strengthen the squad.
Which he has done with the recruitment of Kroos and Rodriguez, and could still add a few more players. Of course, a number of players are probably going to leave, such as Sami Khedira, Angel di Maria and Isco, but even then Ancelotti will have a strong squad with depth - a team that will be able to withstand injuries, suspensions and drop in form and be in contention to win La Liga and the Champions League.
Next season Madrid will have just Barcelona to fight against in the league, but Europe will be a different matter altogether, and Madrid are preparing to make history.
In recent times, both Barcelona and Bayern Munich have failed to do that for one reason or the other, and many will expect Madrid to fail as well. Which is why they need to do everything they can this summer to makes sure that they emerge triumphant next May.
Madrid are a club who are always determined to create history and there is one more bit of history to be made next May. Whether Madrid will do so or not, only time will tell.