People is corrupted by nature.
We've suggested -at least i remember it, but don't remember if between the suggesters I was there- that yep, this option was mentioned time ago.
Just use the AvQ from another moment, like for example the average quality of the teams during the last matches of the same tournament or similar, and I guess, that for some technical reason, that's not posible.
Then we can analyze how the use of the "Average Team Strength on Previous Season" too can be used for manipulation. Perfectly.
The only way to, dont manipulate is... the same suggestion that I did for the assos, -when I say, choose 14 players before start, and play the FAs with these players, without changes available or new market incorporations- so... "choosing before" and closing the teams is the only "perfect solution" but this in the regular tournaments will not happen.
In FAs is another history, as these needs a obvious fix and a way to do what I call a professionalization of the FAs and not this joke.
The game in essence, has been so flexible since the first version in 2010, and that's part of the success, that's why I don't expect any type of regulation or controls, or limits under the regular competitions.