The winter transfer window is typically the best opportunity for teams to adjust their squads, primarily targeting those that have underperformed in the first half of the season, such as Premier League clubs like Manchester City and Manchester United. However, for a team like Liverpool, which is leading both the league and the Champions League, it may seem unnecessary to strengthen the squad. Nonetheless, Liverpool is facing challenges that are not as straightforward as they appear. They will also be competing on three fronts in the second half of the season - the league, the Champions League, and the FA Cup. Whether the existing squad can cope with this multi-front battle is a question that needs to be addressed by manager Jurgen Klopp. Every season, there are teams that lead in the first half but collapse in the second due to injuries and reduced personnel. Liverpool has experienced this before, with their performance suffering due to injuries. Currently, Liverpool's squad is relatively complete, and with the return of Konate and Bradley from injury, only Gomez and Kjellgren remain on the injury list. It seems that the squad is indeed well-equipped. However, Liverpool still faces issues regarding the renewal of core players' contracts, the future of Kjellgren, and the backup for the left-back position. The contract renewal issue for key players is not something that can be resolved quickly, especially with little progress in the negotiations for Alexander-Arnold's renewal. The renewals for Salah and Van Dijk are also uncertain, which could potentially affect Liverpool. While Liverpool is reportedly confident about renewing…