Fifteen minutes to go in the 2021-22 Premier League season, the title looked likely to change hands for the first time in months, with Liverpool having every chance of stealing top spot away from Manchester City. But then came Pep Guardiola and three inspired second half substitutions, stealing the crown right at the death. Here are three ways to best support the substitution process, and make effective changes to change football matches.
The MastermindSite 