I like this trade alot, there is a decent chance that Wallace is going to have to move off of 3b, meaning the Cards would have no spot for him. Mortensen looks to be an ok arm but nothing that special. Also they have 12.5 coming off the books from Glaus, 3.5 coming off from Kennedy, and 4.5 coming off from Greene. So it is certainly possible that they will have money to give him an extension.