It was a turning point in Chelsea's history. The first time Roman Abramovich and co haven't gone for a foreign manager, other than Roberto Di Matteo who despite giving Chelsea supporters their greatest ever night, Lampard's appointment felt different.
Only one season to his name as manager, many touted that the appointment was risky and could damage Frank Lampard's playing legacy at Stamford Bridge.
But amongst Chelsea supporters, there was no care in the world. A club which was so divided under Maurizio Sarri felt instantly connected when Lampard's arrival was confirmed.
It wasn't just the fans who were jubilant, the youngsters in the academy were too. A former Chelsea player who was given a chance at a young age, coming in to take charge, knows what it is like to be given that chance to make the step up.
Lampard showed that he was prepared to play youth at Derby. He changed the approach, albeit in the Championship - Mason Mount, Fikayo Tomori, Harry Wilson, Jayden Bogle all playing regularly at Derby County.
Chelsea was a different level of pressure and would Lampard take the risk? All the hopes of making it into the first-team suddenly increased ten fold for the youngsters, and Fikayo Tomori and Mason Mount casted their minds back to the day Lampard was appointed head coach at Chelsea, and what the instant reaction was.
In an interview with the Daily Telegraph, Fikayo Tomori said: "There was a lot of talk about it [Frank Lampard becoming head coach], but you thought ‘is it really going to happen?’ or ‘It can’t really happen’ but I think I heard it on TV and I was just like ‘oh wow, he actually got it’.
"Then you start thinking about yourself and the fact it could be a good thing, so it was exciting and maybe there were a few high fives!"
Mount, 20, believed that he and Fikayo Tomori had an advantage heading into the summer because they had worked with Lampard's first season as a manager, and they knew his style of football.
"Especially for us two, working under him last season, knowing how he works, knowing how he wants to play, we probably had that little bit of an advantage coming into pre-season," Mount said.
"But, yeah, it does help having an English manager knowing all the young English players coming through the academy, knowing what we are about and having that confidence in us to perform."
"At the beginning of the season, one of the first things the manager said was ‘don’t talk about the transfer ban because it’s got nothing to do with us’," Mount added on Lampard's approach to the new season with Chelsea.
"We have to be a team throughout the whole season to do well. That is something strong within us, that we’re all so close and working so hard for each other."