Haaland was nothing without someone who was having capability to supply him with the ball. I just try to make you aware that if haaland is not that good caused by he is a typical of striker that was on tap specialist. He is not that good in dribbling or finding the ball by himself.
Haaland was a perfect when it was about positioning and one tap skill but this guy is still lack of confidence when it comes to getting the ball and try to dribble by himself. There will be no perfect striker. Haaland is having some specialized but he is still having some weakness as well.
Haaland is a type of traditional striker and he is similar to Christian Vieri or Luca Toni. Those Italian strikers are very tall and strong like Haaland but they are not types of strikers who can self create chances to find goals for themselves. They need to receive good key passes from his team mates to make shots and have goals. They also contribute very limited to a tactical operation of the team and have them in your squad means you will have goals if those strikers have excellent matches or no goals and like play with 10 players if they have bad matches.
Alvarez is going to play as a striker once haaland was injured.
Alvarez is different than Haaland and he can play at different positions in an attacking system. He also has good free kick skills too and I believe Alvarez can play at a forward position too. He is very similar to Lautaro Martinez who if you knew well, played as a forward behind Romelu Lukaku in Inter Milan four seasons ago.
Manchester city is having some players that can play in the some roles. Pep just needs to rotate it and it will be helping the club a lot.
Manchester city has some more players were injured. Pep must think to rotate the available players. Manchester city needs also try to make sure there will be no player who is going to be injured again.
Manchester City even can play without a striker so if both Haaland and Alvarez can not play because of injuries, Pep and Manchester City will have alternative solutions for their attacking. They will not be affected too much if those strikers are missing by injuries.