The last time that Chelsea was ruthless and concise in the transfer window was not in 2020. In fact it was in 2014 under Jose Mourinho. The Portuguese manager knew the personnel he needed to make his squad complete and did not waste any time in the transfer window.
Historically, Chelsea are not particularly known for leaving their transfers so late. They'd usually have one or two deals in place before the transfer window opens and nothing would stand in their way. If they were to go after a player, they would usually succeed. Recently, we've seen the Blues hampered by sanctions but it doesn't dismiss the late transfers made last summer and year before when Frank Lampard was in charge. The failed signing of Jules Kounde last season set the tone for the season where Chelsea would eventually lose Andreas Christensen and Antonio Rudiger.
Now that the Blues have their transfer targets in sight and have had time to reach out with deals, can we see a window as successful as 2014?