The Scottish Football Association is to hold a "critically important" summit around the future of the national game.An email has been sent to all Scottish Professional Football League clubs to attend the forum, which will take place in St Andrews on 4 September.The email, which has been seen by BBC Scotland, says the SFA will "discuss opportunities" around homegrown talent and hear from clubs who have "optimised their elite talent development model".The memo also states the objective is to focus on the "current reality" facing Scottish football.Part of the conversation will be around improving the prospects for homegrown Scottish talent and increasing revenue streams for clubs.This comes after Scotland's national team failed to make it out of their group at the men's World Cup, their first finals since 1998.The summit will be hosted by SFA chief executive Ian Maxwell and chief football officer Craig Mulholland.'Vast amount of change needed'Former Aberdeen and Scotland defender Willie MillerWhy do we need serious change? Is it an issue with getting young players through the academies? What is actually wrong with our game in Scotland?We've qualified for three major tournaments. The fans seem to be buying in to the league set-up. The numbers are up and the numbers seem to speak for themselves.I'm all for them getting together, I'm all for the authorities speaking to the clubs. There are issues and there are problems. There will be resistance.Dundee manager and former Scotland defender Steven PressleyWe're finally beginning to see some of our young players playing in the lower leagues [on loan via co-operation agreements]. Young players playing games in a competitive, man's environment from an early age is critical.Often, players that you don't think are the ones that'll come through are often the ones that come through just when they get opportunity and exposure. Players just surprise you with opportunity.Former Hearts, Motherwell and Rangers midfielder Andy HallidayThere's a vast amount of change needed, from the ground up. There has to be x amount of Scottish talent in a matchday squad. There has to be a clearer pathway between youth football and first-team football.From grassroots up, there's a multitude of changes that have to be made. We have to deliberately delay 11 v 11 football. Can it go back to nine-a-side football? There's more one-v-ones, more decision making, more game involvements, they'll have double the amount of touches. Technique should be paramount.