Good points Khris
I was not considering the cheaters who have multiple accounts...but how would they profit from it?
I envisage putting your players on the market in the same format as is current, to let all managers have a chance to bid, but you would only receive 75%-80% of final selling price, as there would be a sellers fee for TopEleven. So even interacting between multiple accounts means you'd lose 20-25% of your tokens each transaction....not a good way to boost an account! But yes a limitation on number of transactions per season would also counter act the fraud.

Not asking to go back to old system at all. But to use new system with a transparency about the players and who is selling them. Similar to the negotiations tab except as the auctions tab....it would not be that difficult to impliment.