Although Ron Dennis concedes a team cannot "always be on top", he insists McLaren are working hard to get back there.
McLaren have had a difficult start to this season, which even saw their run of 64 grands prix inside the points come to an end in Canada.
Fighting just to finish in the top ten, the Woking team has yet to achieve a top-three result never mind a race victory.
The team's woes have put them out of the Championship fight with just 37 points, 164 points behind Red Bull Racing.
"Losing is an inevitable repercussion of not doing a good enough job," Dennis, McLaren's executive chairman, told BBC Surrey.
"It doesn't mean to say that we are in any shape or form not focused on reversing that trend.
"If you compete at the top and challenge for World Championships - whether it is Formula 1 or any other category of sport - you have to come to terms with the fact that you can't always be at the top.
"It is just too difficult. Every grand prix team experiences it.
"It is just about hard work, a focused and committed work force, good design and good support from the people who invest in you.
"Ultimately, the tide is there to be turned. It just takes time.
"It would be great if it could be sooner rather than later, but it is not that easy."
The former team boss highlighted the criticism the team has faced this season but says that's part of the job.
"We live in a world, and England tends to excel in it, at jumping on people who fail and quickly forgetting when they succeeded.
"It goes with the job. If you are a high-profile organisation that is used to winning, you shouldn't be at all surprised when people are critical when you are not doing the job that they expect."
He added that one must not forget the success that the Woking outfit has had in the past, winning eight Constructors' and 12 Drivers' Championship titles.
"Whilst we don't rest on our laurels, it is important to remember that we have been around 50 years and we've won 182 grands prix," he said.
"Since 1966, when we first competed in Formula 1, we have won one in four races in which we have entered.
"We really know what it is to win, but equally we understand what it is to lose."