Of course, Rashford cannot carry the whole load alone. The team needs a very good striker. I liked Nkunku, but Chelsea acted before them and made a serious transfer. If Manchester United want the championship, a striker is a must, they must find it. If there is a striker of this quality in their infrastructure, I think they can make it to the A team as a backup.
Surely Erik Ten Hag needs a boost from the new attackers they can recruit in this transfer window. Rashford has quite a good finish but he also needs the right duels to be more aggressive next season. Manchester United offer for Atalanta Hojlund sticker has been rejected because Atalanta wants a high price for a team that wants to recruit Hojlund. We will see how the reaction from the management of Manchester United, will they give up again in the hunt for Hojlund signature.
To go through next season, Manchester United definitely needs a good overhaul in the depth of their squad, especially in defense and front lines. I'm sure Erik Ten Hag will do quite well because he's a coach who has a soul for building a stronger team.