With half of the guys on that list that are late in their careers or retired (and all but a few with WARs under 10), if you traded them around their age 24 or 25 season, you'd be trading them at peak value. With half of them, you'd regret it unless you got some exceptional value in return. That list doesn't really convince me to hold or trade. For 1 guaranteed year of Manny or just in general?