Good idea but how you manage it. I could bid for a player in the first hour of sale, withdraw my bid just before it finishes and then buy again cheaply. Logically it would go back to whoever bid to push you up to the level of your bid, but by that time they will have bid on something else and have no cash left. Alternatively the bidding could start again or go back to a 12 hour window. All sorts of options. I know I hzve made mistakes and bid on the wrong thing and this would help. Just need a way to make it work.