Liverpool have made a number of signings over the years who didn’t live up to expectations. Lazar Markovic, Naby Keita and Alberto Aquilani are but a few examples of players who didn’t hit the heights expected of them at Anfield. However, perhaps the most frustrating flop at Liverpool over the years was Andy Carroll. Signed on deadline day in January 2011, Carroll was signed as a last-minute replacement for Fernando Torres. After an excellent 18 months at Newcastle, Carroll seemed destined to succeed at Liverpool, but, sadly, it really didn’t go to plan for the big man. Speaking on the BBC Mat…