I want to echo some of the things DHowser just said. In this sophisticated atmosphere of owners who have all been through an auction before the team with 4 players for 61 mil would get their @ss kicked! Also, if you put up those 10% above bids you mentioned, I bet you get all 4 players anyway, so you are already free to try that strategy with the current system.
However I do think %10 is a little low.
I agree with Gorshar that the current system is not necessarily broken. but I do think it is not elegant, and it could be improved. To me the best system would be one where the inducements for putting up a player you want, and the inducements to not put up a player you want were about even. I think a system where the proposing owner could beat a bid by 15 or 20% would be balanced for the early parts of the auctions. later on, say the last 100 players, I think having to beat the top bid by 40 or 50% might be better.
So I think my proposal would be that the proposing owner could beat the high bid, if they did so by at least 20% through the 250th player proposed, after that, the amount would go up to 40%.
I don't think we "need"this change, but I think it would be exciting and lead to most interesting bidding possible.