Is this a real question?
Dusty got a healthy Ryan Zimmerman and Daniel Murphy for the entire season, got MVP Harper for 4.5 months, and Strasburg only missed 4 starts. Also got much more out of the bench, but that may have actually been because of his coaching.
Other than the pen, can you tell me where MArtinez has had an advantage over Baker?
Turner missed 2 months last season, and Martinez has had a healthy Eaton longer as well (albeit only an additional month or so). He also has had 60 games of Soto, which is better than anything Dusty had available in LF. I don't think that's enough to balance out Murphy and Zimmerman (as well as Rendon's DL stint this year), but there is a little bit of mitigation there. I'll leave alone whether Werth's absence for most of last year was a good or bad thing. I don't blame this season on the manager: you hire a rookie manager, you can't expect him to save your season when other things go wrong.
One of the less-discussed issues in this year's disappointment is that the backups who have ended up getting a lot of playing time - MAT and Difo most prominently - had far better seasons last year, and the loss of the Howie Kendrick Safety Net really hurt. I personally think that was more luck than anything Dusty did and that the 2018 versions of them is closer to their true abilities, but it's a noticeable difference nonetheless.