A few points to raise about second bidder/lack of...etc. Is the timing of the sale linked to a) the agreements arrived at by the owners b) Wilder staying c) our ability to move quickly in the market?
a) both owner's knew Brooks would bring in the money required for transfer; neither have to invest extra on the playing side once sold
b) Wilder wanted stability in the boardroom, a) provided that, if only for the short period of another season, he also wanted to spend more - he's got that
c) We had to get shut quickly because Wilder needs to move quickly, he hasn't the funds for the quality striker we need without Brooks going and there aren't too many strikers about.
All of which says to me, we might have got more money in the Brooks deal had we been able to eke out the process until deadline day. He might have played and scored a couple in that time, more parties may have become interested - ultimately, the fans didn't get the deal that some might've expected but the club, and Wilder, got the deal they needed.