It remains to be seen exactly how ambitious Liverpool are willing to be in the summer transfer window. There are certainly a couple of areas of the squad which could do with some work as Arne Slot gets down to business. One of the main objectives for Slot should be to improve the efficiency of the Liverpool attack. The Reds were simply too wasteful for large patches of this season. In some ways, this can be done at the AXA Training Centre. Darwin Nunez, for example, will reportedly be kept on board instead of sold, but will need to hit the training pitches in order to get better. The other way…