If rumors are to be believed, Manchester United may have already found a replacement for the vacant managerial position with the imminent appointment of Ralf Rangnick.According to David Ornstein of The Athletic, Manchester United will be looking to bring Ralf Rangnick on as manager on an interim basis for the remainder of the season. The German will also reportedly enjoy a two-year consultancy role at Old Trafford starting next season.Fabrizio Romano@FabrizioRomanoJulian Nagelsmann reveals: “I texted Ralf Rangnick and told him I think it's great to see him at Man United. He will do MancUnited very well with the way he plays football”. 🔴 #MUFC @imiasanmia “I hope Rangnick will stay there as manager longer than just next summer”.6:39 AM · Nov 26, 20218356895Julian Nagelsmann reveals: “I texted Ralf Rangnick and told him I think it's great to see him at Man United. He will do MancUnited very well with the way he plays football”. 🔴 #MUFC @imiasanmia “I hope Rangnick will stay there as manager longer than just next summer”. https://t.co/SsZLUW4xZ9Manchester United will likely be making it official once the paperwork and work permits are done. The Red Devils do not expect any complications from that side.Still, the official documentation time means that Ralf Rangnick will miss Manchester United's fixture against a buoyant Chelsea side led by his pupil, Thomas Tuchel.So in the meantime, let's look at why Ralf Rangnick is such a hallowed name in the footballing sphere and how Manchester United can expect to improve under him.Who is Ralf Rangnick?Ralf Rangnick is among the very few that can be identified as pioneers in coaching in world football.Nicknamed the Professor, Rangnick is considered by many to be the father of the modern Gegenpressing style of football. Ralf Rangnick is not just about gegenpressing as he has worked as head of footballing operations and director of football at Red Bull's clubs.If confirmed, Ralf Rangnick will be joining Manchester United from Lokomotiv Moscow, where he decided to become managing director of sports and development. Let's see how Ralf Rangnick can help the Red Devils turn around their abysmal conditions in the current campaign:#5 Manchester United academy can be great againRalf Rangnick can bring the best out of the young players once more (Image via Manchester United)Manchester United have had at least one academy graduate in the starting eleven on every occasion over the last 50 years in the Premier League. While there is no denying the greatness of Manchester United's philosophy, it can be claimed that few clubs, noticeably Chelsea, have outshined their academy recently.Karan Tejwani@karan_tejwani26Ralf Rangnick's great at squad building and his far-reaching scouting network will be perfect for Manchester United's future and academy. He joined Red Bull in 2012 and immediately bolstered their squad, as evident by their meteoric rise in market values (data via Transfermarkt).10:34 AM · Nov 25, 20214212Ralf Rangnick's great at squad building and his far-reaching scouting network will be perfect for Manchester United's future and academy. He joined Red Bull in 2012 and immediately bolstered their squad, as evident by their meteoric rise in market values (data via Transfermarkt). https://t.co/Yn7IlxRzDORalf Rangnick has worked with an incredible number of young talents throughout his scouting and coaching careers. Him, along with Paul Mitchell, nurtured players like Sadio Mane, Dayot Upamecano, and Joshua Kimmich.All these players have made it on the big stage of world football for their respective clubs and countries.#4 Counter-Attack out, Gegenpressing inGengenpress stands for "counter-pressing" in German (Image via Sports Blog Nation)Manchester United's DNA involved playing on the counter and breaking into swift transitions under Sir Alex Ferguson. Although the style had reasonable success under Ole Gunnar Solskjaer, there were also numerous problems.Manchester United have repeatedly failed to break down teams sitting deep and, of late, have been vulnerable to counter attacks.FORD🔴🔰@AbiodunFordRalf Rangnick is truly the god father of Gegenpress. Cristiano Ronaldo will bang a lot of goals. ❤3:09 AM · Nov 26, 20218913Ralf Rangnick is truly the god father of Gegenpress. Cristiano Ronaldo will bang a lot of goals. ❤ https://t.co/9BOvzAHRV4Football fans know what gegenpressing is and what its impact has been in English football. It's not just Juergen Klopp's Liverpool, there are also other beneficiaries.With players working under a manager like Ralf Rangnick, exciting times potentially await Manchester United. It will be interesting to see how quickly the Red Devils can adapt to his demands.