re: What are the Saints going to do with Bush?

There's that aspect, as well. Now, the Saints of Old would have released him outright or traded him to a division rival. These Saints know better than to do that.

IF they trade him, the deal needs to be REALLY sweet.

However, as Certified Bush Hater Bill Barnwell from Football Outsiders notes, the Saints can afford to keep him: LINK
(btw, good analysis of why NOT franchising Sharper is a good idea. Four words: regression to the mean. OK, two more words: run defense)