Taarabt has been the inspiration behind the R's successful season so far but made little impact on Sunday as Rangers failed to break down 10-man Nottingham Forest in their 1-1 draw.
Orr told the London Evening Standard: "Teams will try to stifle Adel and double up on him. That's when other people need to step up to the plate and take the load off him a little bit.
"The likes of Ishmael Miller and Wayne Routledge did that (against Forest) but we just couldn't get the finish.
"Because Adel has so much ability, people look to him to do it every time he gets the ball but we need to realise that it's not always going to come off for him."
Speaking on Sunday's result, Orr added: "Maybe in a week or two we will realise it was a good point. We are still at the top of the league and every single team in the division would swap places with us right now."
Source: PA
Source: PA