Sweden international Lindelof has started 10 of United's 11 Premier League games so far this season, partnering the world's most expensive defender Harry Maguire.
Scholes admits the major improvements United need to make in the transfer market are in the attacking areas.
“It has yeah [been a hard watch]," Scholes said on BT Sport.
“You look at the league position and it's been difficult. This competition there is a lack of shots, a lack of attempts on target.
“I think the big problem with this team is the attacking players.
“I think it's obvious for everyone to see that they lack creativity and I think in the forward areas it's a real struggle.
“We always want players in the team to take risks but it just looks like the quality isn't there.
“We've spoken about this all season now, probably the last couple of years, in forward areas.
“I think in other areas you're okay, if [Paul] Pogba comes back into the midfield with [Scott] McTominay it looks good.
“I think possibly at centre-half they could need a partner for Maguire, although Tuanzebe looks a good option. I'm not sure about Lindelof.
“I think everywhere else it's looking okay but it's just them forward areas, them creative areas, where it's a real struggle."