Undoubtedly, a player like Karim Benzema left Real Madrid and Real Madrid could not recruit another star in that position which can be considered as a weak point for Real Madrid. After Karim Benzema left Real Madrid, Real Madrid lost their first two friendlies and everyone feared that a bad season might be in store for Real Madrid, but as the season started, Real Madrid returned to their former form. Real Madrid have played three matches so far in La Liga where Real Madrid have won the first three matches. Real Madrid will do well without Karim Benzema in the Champions League if they can maintain their current performance in La Liga.
Carlos Ancelotti is well experienced person who is working on good strategy mainly he never depends on one player after exit of Karim Benzema there were many rumors about Real Madrid future and their start of pre-season games were also not good but now as they are playing in La Liga things are looking impressive and their best player Jude Bellingham is also doing impressive as right now he is at the top of the league table, but now they need to keep this momentum and also having their replacements in better shape because any injury or other problem can ruin their season which could be not good.
Now in few days we will have group stage to be started, so load could be increase and things could be also more difficult for the players and teams, but hopefully they will be able to manage this all as they are well-prepared for this all with their current available sources.