A bad trade can haunt a general manager for life. I say that while assessing the positions in which St. Louis Cardinals GM John Mozeliak and Texas Rangers GM Jon Daniels find themselves. Mind you, it’s an enviable position; each GM is blessed to have one of the game’s top prospects -- outfielder Oscar Taveras (Cardinals) and shortstop Jurickson Profar (Rangers) -- and yet have no room on their major league rosters for them. That is, unless they swapped prospects. With the Cardinals in need of a long-term solution at shortstop, Profar would fit perfectly with them. Likewise, Taveras fits with the Rangers, who are seeking a middle-of-the-order bat to play right field, especially with Nelson Cruz in his free-agent walk year. A deal of this magnitude is referred to as a “challenge” trade, one that will impact both GMs’ careers and their respective teams for years. It takes guts and fortitude to make a trade like this, and how well those players perform will forever be the gauge with which the team and its fans judge who “won” the trade.