Is the Premier League ready to embrace a substitution revolution?

Mikel Arteta and Roberto De Zerbi are taking advantage of the re-introduction of five subs. But should managers go further?

Jose Mourinho wore many faces as a Premier League manager. Chameleon-like, shifting from rambunctious to cantankerous.

If Chelsea's 2015 Premier League title win had all the hallmarks of a Tom Wambsgans redemption arc, his 2004 to 2007 incarnation was defined by his Logan Roy lead character energy. Every game felt tinged with Mourinho razzmatazz - good or bad. No wonder, then, when Chelsea lost to neighbors Fulham for the first time in 27 years on 20 March 2006, Mourinho preserved his role as chief headline maker.