I think it is a well known fact that Real Madrid did not spend heavily on a striker this summer because they are waiting to sign talisman Mbappe from PSG in the next summer transfer window. and this is why Joselu was signed as a stop gap. Instead, Madrid invested in their midfield options heavily; as they prepare to let go of Modric and Kroos in the coming season.
Madrid have to be very careful because these decisions might hunt them later on this season. The season is very long and a lot of things can happen. One thing I know is Bellingham won't keep scoring all season long and they need attackers that can score all season long.
Joselu needs to sit up and take his place as the top 9. He can't be ina team and a midfielder is taking the false 9 position.
Madrid's attack is built around Vinicius which might also be a problem. Last season Vini spearheaded the attack, the good this was Benzema was there to score. If they don't have a striker that can do that this season, they're going to have a lot problems.