Pros & Cons

At the same time, Niko Kovač has a strong resume; he can potentially raise Dortmund's floor almost immediately, which is something BVB desperately requires. However, it is necessary to list some pros and cons of this managerial appointment so that it will be possible to predict hypothetical issues that might occur.
Considering the pros, his experience in the league is definitely a solid argument on its own. As Kovač likes to play a vertical and high-pressing style, it might suit BVB's current squad very nicely. Despite the lack of depth in some areas, Dortmund's pacey wingers and fullbacks capable of playing distinct roles might be a good fit for Kovač's style.
Whatever setup Kovač ultimately chooses, he has shown that he can build offensive and aggressive sides while maintaining defensive stability. However, he will need to stay out of trouble if he wants a chance to succeed at the Westfalenstadion.
Focusing on the cons, Kovač apparently is not the easiest person to deal with. He has had problems with many players during his past few spells as a manager in the Bundesliga, with notable names like Thomas Müller. That factor could also be potentialized by some players' lack of intensity at times, which is a key component of Kovač's tactical method.
In other words, Kovač has tactical intelligence and experience. Still, he will be tested mostly on his communication skills and ability to maintain a healthy relationship with the squad and management. If he manages to balance those two things, he has a good chance of helping Borussia Dortmund turn its season around.