The transfer was certainly a success in the financial respect, but what about on the pitch? Many people are already questioning the decision given the excellent start to Morata's Premier League career when compared to the Real Madrid front-line so far this season.
Bale, Benzema and Ronaldo have managed just five goals and five assists between the three of them so far this season. On the other hand, Morata has scored seven times and provided three assists.
The now Chelsea striker became disillusioned with his boyhood club, despite winning La Liga, the Champions League and the Club World Cup, and having the support of the fans.
Morata was always Zidane's back-up option even when he was in better form than the members of 'BBC'. In fact, the 25-year-old's goalscoring rate is better than the other three: he has scored a goal every 93 minutes, while Ronaldo has managed one every 98, Benzema every 170 and Bale every 215.
The former Real Madrid striker is fighting to be the Premier League top scorer and is just one goal behind current leaders Harry Kane (Tottenham) and Sergio Aguero (Manchester City).
Chelsea are in fourth place in the Premier League with 22 points, nine behind leaders City and one behind second and third, United and Tottenham, respectively. Morata has scored over one third of the 19 goals which the Blues have managed in the competition.
Meanwhile, Real Madrid are third in La Liga with 23 points, trailing leaders Barcelona by eight points and four behind second-placed Valencia. 'BBC' have contributed less than one quarter of the 22 goals scored by Los Blancos and, at the moment, the midfielders are sparing their blushes.
All three members of 'BBC' are far behind Messi, who leads the scoring charts with 12 goals.
Florentino Perez sanctioned the most expensive transfer of a Spanish footballer when he sold Morata to Chelsea for €80m and opted to stick with 'BBC', the trio that Madrid signed for a total of €237m.
Ronaldo (€96m) has more than repaid his transfer fee and the subject of the contribution of Benzema (€40m) is one which is debated every year, despite him having a better goalscoring rate than a number of Madrid legends, but Bale (€100m), with his numerous injuries, is looking more and more expensive for Los Blancos.