Surely the answer is to put Ryan Air in charge.
GA ticket is £30 with seat allocated for you.
Pick your seat (when available) £3
OK, so scrap the £3 bit but once the club have taken up the allocation (1800 at Liverpool) these can then go back online on a Thursday for purchasers to select their...
I don't think it's a free for all. Fans are allocated seat numbers once the club have the final numbers. So it's still first to book gets the front seats.
Everton though springs to mind with four blocks, two up and two down. There is going to be a lot of seat swopping at grounds, that's for sure.