Evaluating NFL trades is an inexact science. In the moment, we can compare deals to similar ones from the past or look at what the widely held expectations were for a swap, but teams have information and insights that we don't necessarily have on the outside.
Nolan Arenado is back in the Cardinals' lineup after a six-week shoulder injury. He has started at third base each of the past two nights. He'll probably be in the lineup for most or all of the final 10 games of the season, but the real source of intrigue will turn up again in the offseason. Arenado is under contract for two more seasons. He's slated for a $27MM salary next year.