While the volume of Liverpool's transfer activity has come under scrutiny in recent years, there can be little disputing the thoroughness.
Since Jurgen Klopp became a Champions League winner in June of 2019, the Reds have signed 15 players for the first-team squad, with two of those being Ozan Kabak and Ben Davies in the winter of 2021. The Turk's loan spell was not made permanent and Davies was eventually sold 18 months later having failed to make a senior appearance. Andy Lonergan, meanwhile, never played for Klopp.
Manchester United, in contrast, have brought in as many as 21 during that same timeframe, while Man City - a side who have won four of the last five Premier League titles - have added 16 to their books.