I'll defend the team and the manager from most of the accusations in this thread. I don't think this is an attitude problem or that Baldelli has "lost the team". The front office might be culpable for player decisions and the construction of the team. They seem to have a lot of guys that can't stay healthy.
I think we are beginning to see results in the much mocked "pitching pipeline". Both Varland and Ober have gone from middling at best prospects to guys that we can project to be rotation mainstays.
The underachievement has come principally from the position players and more often than not regress to the mean which would indicate improvement in the last 100 games. I am not sure if the major league batting coaches are effective. The chief guy, Popkins, had not had much experience and certainly not as a major league coach. The strikeouts are record setting and not in a good way. A change in approach probably needs to be done, but the roster is full of strikeout-prone players, so maybe it's on the front office.
Alex Kirilloff and Royce Lewis look to me like they could be stars as soon as this year. Carlos Correa and Byron Buxton should be more productive, if they are healthy. Speaking of health, the roster seems to be showing their issues that players can't stay healthy. Baldelli can't go with a set lineup when he has less than a full bench and players haven't established themselves, some of whom have had a full chance.
I won't give up on this team just yet. I think the offense will pick up substantially. They probably need to make some kind of move to improve production from their corner outfielders. The better-hitting catcher should be playing more. I just don't think this is a lost cause as of yet.