By Sean Walsh Liverpool enjoyed a successful pre-season tour of the United States, winning all three of their matches on the other side of the Atlantic. The Reds were able to marry minutes in the tank with a string of fine performances and results, and though in the grand scheme of their season that may mean little, it has generated a feeling of optimism ahead of the new campaign – victories against the likes of Arsenal and Manchester United are always sweet no matter the circumstance. Here are our key takeaways from Liverpool’s tour of the USA. 1. Arne Slot’s style takes shapeWhoever replaced…