4 is an exaggeration. Made official on the 2nd, game on the 5th. 1 day of recuperation/rest, 1 day of training, game on the 8th. R&R, one day of training, game on the 11th. Covid outbreak, players return to training on the 23/24th but are training in split groups. Day off for the 25th, one day of training, match on the 27th. 1 day for R&R, one day of training and a match on the 30th. R&R, two days of training and then Wolves on the 3rd.
The majority of these training sessions are preparation for the next game. He's had little to no time to instil his tactical philosophy in actual training sessions. Now he finally has a full week of training. It's no coincidence that Klopp said 'he will realise due to the schedule he has almost no time to train his players'. And Shaw said that now we have a full week of training Rangnick will able to bring his new ideas.