Jeez. Remember this madman who headbutted Joe Jordan - who was, at that time, a member of the coaching staff at Tottenham Hotspur - when Milan took on the North London side at the Champions League.Actually, that was just one of the many incidents where the former World Cup-winning Italian lost his cool. And now, Gennaro Gattuso is going to be on the sidelines during Serie A games as Milan have hired their former player as the manager to replace the sacked Montella.A lot of good things were being expected from the San Siro outfit after a summer of overhauling. However, coach Vicenzo Montella couldn't find the right system to blend his players and has, as a result, had to pay for it.Meanwhile, Milan fans seem quite upbeat with this move, but there are some who are not so sure. Presenting to you, the Twitter reactions...We can imagine a lot of yellingImagine Gattuso trying to teach tactics to a team.— Lucas Navarrete (@LucasNavarreteM) November 27, 2017That's not really a great resumeGattuso’s career as coach: Sacked by SionSacked by Palermo Sacked by OFI Creta Left Pisa after relegation https://t.co/c6o06OrIYR— Siavoush Fallahi (@SiavoushF) November 27, 2017This could be interestingAC Milan just sacked their manager and replaced him with Gattuso. Can see him walking in day 1 and beating Borini to a pulp just to send a message— Ben Goodwin (@BGinge8) November 27, 2017I can imagineWhen Gattuso forces you to trackback and defend pic.twitter.com/M6Z7fPljcV— Benzema_fan (@ZizouHuweidi) November 27, 2017Gattuso showing up to training like pic.twitter.com/w8CK3wwDZY— N.K?? (@SilvaBienn) November 27, 2017BREAKING: Milan sack Montella. BREAKING: Montella is replaced by Gattuso as new coach. pic.twitter.com/6Za8sdJ8P5— ?? (@acmilan_eb) November 27, 2017AC Milan players on their way to training after hearing Gattuso is new Manager. pic.twitter.com/CIykJHvpY5— Ivan Dougan (@ivanlotti) November 27, 2017TotallyGennaro Gattuso's first time showing up on training as Milan's head coach. pic.twitter.com/HlqlgOI4qA— Deniz Andres (@Koezo123) November 27, 2017Gennaro Gattuso has always loved a touchline battle... pic.twitter.com/kecPsabZ0Y— bet365 (@bet365) November 27, 2017That makes the two of us% chance of Gattuso as Milan coach working out? Feel like I’ve seen this one before and it doesn’t end well at all.— Sam Tighe ? (@stighefootball) November 27, 2017InterestingGattuso’s coaching career can be summarized as wild and volcanic. Between being fired, goofy promotions from Lega Pro, fighting internally with everyone, this new adventure is unlike anything he’s had— Matteo Bonetti (@TheCalcioGuy) November 27, 2017Gattuso, Seedorf, Inzaghi and Brocchi. Four of AC Milan's 2007 Champions League winning side have now managed the Rossoneri. pic.twitter.com/KHSin0vDnh— Mootaz Chehade (@MHChehade) November 27, 2017It’s all fun and games until Gattuso finds tweets calling him a fraud, tracks down the IP and unleashes a series of kicks to the head— Sellvio Berlu$coni (@Pure_Milanista) November 27, 2017Someone is happyMontella has been fired. And Gattuso has been appointed as the new coach. I love Gattuso, but not sure this is a good idea. In any case, good luck Rino!— MilanGirls (@Milangirls) November 27, 2017I fully back Gattuso as the new sheriff in town, but honestly, I’ve got little to no expectations. Regardless of how he does, I won’t let it effect my love, appreciation and admiration for him and all that he did as a player for Milan.Let’s do this, Rinoooooo! ????— Matthew Santangelo (@Matt_Santangelo) November 27, 2017Well, let's hope that Gattuso can finally find his feet in management at Milan now!