The players who came to define his era the trinity of Lionel Messi, Andres Iniesta and Xavi were already at the club when he took over.

WSJ: Pep Guardiola: The World's Most Coveted Coach

Still, Guardiola has never managed outside the Barcelona system, where he has benefited from having the likes of Lionel Messi, Andres Iniesta, and Xavi Hernandez at his disposal.

WSJ: Bayern Munich's Tough Manager Call

And, just as Guardiola was blessed with the likes of Lionel Messi, Andres Iniesta, and Xavi in the Barcelona setup when he took over there, he will inherit an abundance of talent in Germany.

WSJ: Victory At Last for Big, Bad, Bayern

Meanwhile, Barcelona -- widely recognized as the best football team in the world with a pedigree of stars such as Lionel Messi and Andres Iniesta -- is the second richest club in the world by revenue.

CNN: 'Monsters' Real and Barca overshadowing Spanish football

First, Bayern ran riot in Barcelona's heavy-legged midfield in its 4-0 mauling the likes of Xavi, Andres Iniesta, and Lionel Messi were squeezed by Javi Martinez and Bastian Schweinsteiger.

WSJ: The Secret of Germany's Success

By bringing Neymar to Camp Nou, Barcelona will add one of the world's most electric young talents to a roster that already includes four-time FIFA World Player of the Year winner Lionel Messi and Spanish national team stalwarts Xavi Hernandez and Andres Iniesta.

WSJ: Brazil Soccer Star Neymar Headed to Barcelona