Do you think Manchester United needs more players? They've had a remarkable transfer campaign, spending a lot on the market. They're trying to do their best to find the best form for the league. It's been tough for them, even financially. It takes time to recover from a blow like that.
Yes, they needed more players and they failed to get them, seriously, I didn't see any remarkable signings they made during the transfer window. I'm not saying the three signings were bad but it definitely wasn't enough for them. My main focus is that their defence, they don't have the quality to protect that backline, just watch their games and see opponents usually dismantle the defence with ease.