Manchester United seems to have failed to utilize all their big signing players like Sancho, Anthony and Hojlund. Seeing this pattern, signing another attacking players won't give a better impact on their offense line. I really don't think this problem comes from the ability of the players. The management and Ten Hag himself need to find the cause of the problem before they prepare the plan for next season.
What the management of Manchester United and Ten Hag must improve for next season is to find players who are able to liven up their attack line very actively. So that Manchester United itself can see players who are really skilled at providing passes from midfield to attack so that there are slight changes that Manchester United can feel next season. Apart from that, Ten Hag himself must also be able to create better ways to train his players because at Manchester United there are already young players who need to get more attention.