They say that in the world of football the hardest thing to do is build on success. Even if your club wins their domestic league, title defenses are few and far between in the modern sport, and for the clubs that do defend their title, most cannot make the jump to continental glory.

But there are those few teams who are bound together by spirit and philosophy that push through and progress. Teams that try to build not just winning sides, but dynasties. Juventus is a case in point.

The odds were stacked against them at the beginning of the 2014/15 season. Their manager, Antonio Conte, left his post after winning the Scudetto (the Italian league title) three times in a row, and Juventus hastily named a successor just one day after his resignation, former A.C. Milan manager Massimiliano Allegri.

The new coach had a tough job to do. Not only must he try and build on their previous success, but also win over a new team, an administration, and most importantly a city. The season that ensued was beyond anyone’s expectations.

Juventus not only won the league 17 points ahead of second place Roma, but pulled off a domestic double, winning the Coppa Italia for the first time in 20 years. The icing on the cake, of course, was defeating Real Madrid 3-2 on aggregate in the semi-final round of the UEFA Champions League, punching their ticket to the final. Although they lost 3-1 to Barcelona, they played a good game and gave their dream season a valiant ending.

Now Allegri faces an even tougher challenge, to try and build higher, and there are arguably more obstacles in his way this season. Juventus have lost their midfield engine, selling Arturo Vidal to Bayern Munich and the legendary Andrea Pirlo to MLS side NYCFC. They must also forge on without their main attacking threat, Carlos Tevez, who returned to his childhood club Boca Juniors in his native country Argentina. Tevez finished last season as Juve’s top goal scorer with 27 goals in all competitions, seven of which were in the Champions League. Replacing him and his impact over the last two years, 50 goals in total, might prove to be the clubs toughest challenge as they try to win a 5th Scudetto; enter Paulo Dybala.