Only by idiots that have perfect 20/20, hindsight-vision.

Dave Roberts didn't make an error and allow a player to steal 3rd, uncontested, that allowed 2 runs in the first, last night. Dave Roberts didn't cough up long balls and hits in Game 5. Dave Roberts followed a formula that worked 95% of the time and he had a few players that simply didn't perform when they needed to. And let's not forget the Astros are a pretty good team that played pretty darn well. Nitpicking DR's moves would be pretty crappy by any real Dodgers fan...