The silver lining to transfer speculation around a club’s players is that it tends to be a testament to the fruit of their talent and hard work. From Luis Suarez and Philippe Coutinho to Javier Mascherano and Xabi Alonso—the litany of ex-Reds who arrived on Merseyside with low profiles before exiting to glitzier climes tells prospective recruits at least one thing about playing at Liverpool : you will improve while you’re here. Case in point is the recent update released by the CIES Football Observatory revealing the players currently in the top five European leagues who’s transfer values have increased the most in the past six months, a list Liverpool players dominate with six entries, while Manchester City come the closest with five representatives. Topping the chart, of course, is the revelation known as Mohamed Salah. According to the CIES, the Egyptian, less than a season on from £36.9m move to Liverpool from Roma, and currently lead...