Darvish was nasty one point in time, but injuries have plagued his career. It wasn't mandatory, but I absolutely don't blame Roberts for going with Darvish -- he had a good outing versus the Cubs, but has fallen apart in the world series. You can blame the manager, but you got to also look at the player. How the fukk you combine to go under four innings in two games as a starter?
Like I said, Roberts should've just had him on a short leash, but he was desperate to get outs to save a bullpen that has been overworked.