Christian Horner has called upon the Strategy Group members to start forcing through decisions as it gets ready to meet again for a discussion over Formula 1's future.

The Red Bull Racing boss has been a staunch critic of the Strategy Group and its failure to enact changes due to the vested interests of its members, made up of teams, the FIA and the FOM, even going as far to say it should be scrapped altogether.

Indeed, though a meeting in May proposed a series of changes, including flexibility in tyre compound use and to make the cars faster, there is no guarantee they will be rubber stamped by the time it reaches the F1 Commission stage.

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However, having become a focus of attention in recent weeks, Horner believes the latest meeting is a pivotal moment for the Strategy Group if it wants to prove it is workable for the sport.

"We need to have progress," he said. "It's an important meeting for the credibility of the group. The purpose of the group is to discuss and decide on the strategic direction of the sport, it's not there to write regulations or make regulations, it's there to agree on what direction the sport can be heading in and we need to get back to the basics of what that group is for and make sure we're on the same page."

Horner went on to reiterate his desire to see an independent, experience consultant drafted in to take the reins of determining the sport's direction.

"[I would like to see] an independent consultant, someone who knows the business and understands the peculiarities and vagrancies of the technical and sporting regulations, comes up with a set of regs that fits the purpose of what the commercial rights holder and the FIA want.

"A team will always look to emphasise one area or another; we would like it to be a very aerodynamic formula going forward, I'm sure others would like it to be more engine focused going forward. I think if you can find someone who can understand the business, understand what the commercial rights holder and the regulator wants that's probably the best chance of coming up with a sensible set of technical and sporting regulations."

Though much of the focus on the regulations has been geared towards a 2017 introduction, Horner believes F1 cannot afford to wait until then to instigate change.

"I think some changes could be fast tracked for 2016. Probably more on the sporting regulatory side than the technical side but there's certainly some things that can be opened for '16.

"Things like why not open tyre choice for the whole year, that you get to pick the tyres you want to take at the races you feel you're going to be potentially competitive at. Or you take more of a strategic view and add a bit more variants in there, we might choose to run the softs at Silverstone compared to Mercedes running the mediums."