Los Angeles cut Todd Gurley on Thursday, bringing a stunning end to the Rams career of a player who was considered a viable MVP candidate as recently as December 2017. His story is a cautionary tale for teams that want to believe their stars are exceptions to what we know about player value and a reminder of how teams that ignore the economics of the NFL often end up paying for their mistakes down the line. It's also a reminder of just how hard it is to be a running back in the NFL in 2020.