As a top tier football connoisseur , my totally unbiased answer would be Mikel Arteta, Unai Emery, Andoni Iraola, Keith Andrews, Fabian Hürzeler, Scott Parker, Enzo Maresca, Oliver Glasner, David Moyes, Marco Silva, Daniel Farke, Arne Slot, Pep Guardiola, Rúben Amorim, Eddie Howe, Ange Postecoglou, Régis Le Bris, Thomas Frank, Nuno Espírito Santo, Vítor Pereira, Diego Simeone, Manuel Pellegrini, Míchel, Ernesto Valverde, José Bordalás, Marcelino, Iñigo Pérez, Manolo González, Claudio Giráldez, Eder Sarabia, Julián Calero, Jagoba Arrasate, Hansi Flick, Eduardo Coudet, Carlos Corberán, Xabi Alonso ( due to media pressure and Perez ) , Sergio Francisco, Matías Almeyda, Alessio Lisci, Luis Carrión, Fabio Grosso, Vincenzo Italiano, Paolo Zanetti, Antonio Conte, Kosta Runjaić, Cesc Fàbregas, Maurizio Sarri, Gian Piero Gasperini, Ivan Jurić, Cristian Chivu, Fabio Pisacane, Eusebio Di Francesco, Marco Baroni, Carlos Cuesta, Alberto Gilardino, Massimiliano Allegri, Davide Nicola, Stefano Pioli, Luciano Spalletti, Roberto Murgita, Domenico Criscito, Frank Schmidt, Sebastian Hoeneß, Dino Toppmöller, Bo Henriksen, Vincent Kompany, Alexander Blessin, Julian Schuster, Christian Ilzer, Merlin Polzin, Steffen Baumgart, Niko Kovač, Ole Werner, Horst Steffen, Paul Simonis, Sandro Wagner, Lukas Kwasniok, Kasper Hjulmand, Eugen Polanski, Christophe Pélissier, Éric Roy, Alexandre Dujeux, Stéphane Gilli, Carles Martínez, Luis Enrique, Didier Digard, Olivier Pantaloni, Bruno Génésio, Franck Haise, Roberto De Zerbi, Stéphane Le Mignan, Liam Rosenior, Habib Beye, Paulo Fonseca, Pierre Sage, Luís Castro, Sébastien Pocognoli.