As I was saying in chat, if we're having a blind auction then a week is ridiculously unnecessary for bidding. Since you can read applications as they are posted, you'll already pretty much know who you want to bid on well before the bidding starts (and you'll just say "1 card for everybody else" as a safeguard). It takes at absolute most an hour or so to compile such a list, which only applies if you missed some recent near-deadline apps.
If blind auction actually happens, which I think it's pretty clear the vast majority of users disagree with, at least shorten the bidding phase to 3 days.