I think Werth is getting a bit too much grief over his performance in the NLDS. It's pretty simple to just say 1 for whatever and say he stunk, but that misses many things, like the walks, pitches seen, and of course the quality of the contact. My memory is of him hittiing a lot of balls deep, not striking out a ridiculous amount of times, and just running into well positioned defense and some nice plays.
Here's a recap of each PA (with links):
Game 1 - Walk, K, walk, fly to 2d.
Game 2 - K, Fly to CF, Grounder to SS (runner advances), Fly to right, Fliner to CF, single to left (Fliner), K, Finer to right (ends game)
Game 3 - K, grounder to 2d, Fliner to CF, K
Game 4 - BB, foul to catcher, Fliner to right, Fly to first.
So, 3 walks and 5 Ks, 2 grounders, 3 flies hit to infielders and catcher, 7 balls in air to the OF (of which one dropped for a single). No liners (I forget whether the single was a liner) but several balls judged between a fly and a liner. Several warning track balls too, from my memory. Seems with him, it was more a case of contact not falling in than bad PAs. It's not good, but my thought as the series went along was that his PAs were mostly better than Span, LaRoche, Desmond, and Ramos, and that he was not reacting to the spot light by not trying to do what was effective for him during the year.