Borussia Dortmund have shown how to bounce back from a slumber on numerous occasions, and they have done it yet again. From the darkest days around 10 years ago to their terrible start to the 2014/15 season, recovery is an inevitability for the club.

Losing their best players, having to deal with the loss of a club legend and sitting, deprived of the limelight, in the shadow of Bayern Munich, Dortmund's resilience is admirable. Now, Die Schwarzgelben are one of Europe's best sides again. Playing irresistible football and possessing some of the world's best young talents, Dortmund have never panicked, nor have they recklessly invested the revenue generated.

Painfully watching Mats Hummels, Mario Gotze - who has now returned to Westfalenstadion - and Robert Lewandowski leave for Bayern could, in each case, have provoked foolish spending, but Dortmund resisted. Rather, investment has been markedly more sensible summer on summer. This year, too, has seen the loss of Henrikh Mkhitaryan and Ilkay Gundogan.

Football - Borussia Dortmund v Real Madrid - UEFA Champions League Semi Final First Leg - Signal Iduna Park, Dortmund, Germany - 24/4/13 Borussia Dortmund's Neven Subotic celebrates with Robert Lewandowski (R) after the final whistle Mandatory Credit: Action Images / John Sibley Livepic

Instead of buying names, Dortmund have signed players based on their suitability and potential. The return of Gotze was a no-brainer, signing Andre Schurrle was shrewd, but it has been other acquisitions that really turn heads.

Along with exceptional talents that were already at the club, especially Julian Weigl and Matthias Ginter, they have added some of Europe's most sought after young players. Emre Mor, Ousmane Dembele, Raphael Guerreiro and Christian Pulisic - a youth product - are on track to become some of the game's best players. Signing players who will be definite starters this season is a natural temptation, but too often club's fail to plan ahead any number of years. In a financial sense, adding players of this calibre and talent will inevitability produce a profit.

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Too often losing, through injury or departure, a key player is seen as an excuse for a dip, or a 'transition'. Dortmund do not approach it in such manner and are a better, more successful club for it. Selling a player generates enormous revenue that should be reinvested to, at the very least, give the squad greater depth, if not talent. Even missing a player with an injury should not be the knockout blow to a season, squads should have cover in both personnel and tactics.

Premier League clubs up and down the league readily spend their world leading revenues poorly by signing players either not suited, not balancing the squad or investing in players who have already peaked.

Lessons should be learnt from Dortmund. The eight-time Bundesliga winners are building a dynasty, while the Premier League enables some of the world's most reckless club management.