The Red Devils have managed to form a number of comebacks this campaign, most recently coming from two goals down to beat Sporting Braga 3-2 in the Champions League during the week.
Giggs acknowledges the fact the team has fought back but suggests it is not an ideal way of going about winning football matches.
"That's probably the biggest disappointment from this year, the number of times we've gone behind," said gigs.
"But on the plus side we've managed to come back in the majority of them and win them.
"Obviously we can't go throughout the season like we have been doing. We know that if we get clean sheets then we'll create chances at the other end and win more games than we lose."