Lingard has become the poster child for some kind of salary cap to stop the mega-clubs from stockpiling excellent players who never see the pitch.
setting aside classifying Lingard as excellent, if the NBA has taught us anything, it’s that salary caps create strange incentives for players which results in things like winning, location, and marketing opportunities leading to the creation of super teams. The NFL has largely avoided this with their larger rosters and the NBA has the extremely perverse max contract but I don’t think the football world would get what it wants with salary caps.
In reality I think luxury taxes have proven most effective. FFP has been a disaster at what it was supposedly trying to accomplishand in the end it’s just discouraging spending but the spending is inevitable. Probably the best that can be done is to force big spending teams to pay a surcharge and distribute that money to lower leagues.
But it probably never should happen in football. This is partially why the big teams keep trying to form their own league. Owners like Henry of course want to close the shop because it’s the only way they can enforce rules like this. If they tried doing it in England they’d just ignore it in Spain and Spanish teams would continue to inflate the market while complaining everyone else is doing it and we’d go back to the days of wondering which Spanish giant will win everything