The cards are not the team we have to worry about. They don't have a better chance than us to win anymore as they are getting rid of a lot of pieces to their winning team after their QB left for retirement.
So, throw reason #1 of yours out.
If another team outbids us, they will have to put up a ridiculous price. Dansby is one guy they are going to offer the money for. The only thing that will stop him from coming is someone else making an insane offer.
Cards aren't the team to worry about, and until he leaves Miami without a contract, his 1st option is miami.