In my opinion, Goodell's advice to avoid guaranteed money was motivated by the fact that teams can get burned by those types of contracts and as a result are not putting the best possible teams on the field. And that is not good for the health of the NFL. Of course, Cleveland is the worst example of this, but Buffalo and a lot if other teams have suffered the same way. As commissioner, Goodell and the NFL is healthy when every team is playing to its full potential without carrying deadweight on its roster.