I start out with a basic question--what is your Theory of The Game? How do you expect to beat other teams starting out with the same salary cap, assuming that Strat gets the salaries roughly right? Miller is 19 and 9 with regard to ballpark hrs and singles to lefties and 13 and 2 with regard to righties. So, that clearly calls for an extreme left-handed power line-up to take advantage of that. By doing so, you increase the net salary value of your players because Strat factors in (I think) a more neutral power park in making its evaluations. And that does give you a net advantage because you are playing 81 games in a park that gives a greater return on your players.
Your team has 31 out of a 72 possible BP homeruns. So where is your advantage via-a-vis other teams going to come from? You basically have forfeited your ballpark advantage because most teams are going to have power more than your team. You should have double (at least) the number of BP numbers.
The other thing is I (at least) would rather pay for outs on the pitcher's card rather than trying to get lesser pitching and try to make up for it with good defense. Also, I want good hitters 1-9 and I get that by having mediocre defense (though I typically try to have decent outfield defense because I am concerned about power hits and multiple base errors). Give me a 7 million dollar pitcher and Gyorko at 2b rather than a 4 million dollar pitcher and a 2 or 1 at 2b or ss who can hit but costs 6 or 7. I just don't see the real pay-off in getting good defense right now--well, I see better value in getting expensive pitching over excellent defense. I certainly don't want a 1 or 2 at 2b or ss who costs 3 or 4 million and can't hit.
Obviously, there are a lot of other things to look at (else the game would get kind of boring), but those are a couple of the big ones for me. And I can't really say that I have been able to develop top teams this year--I need to refine things a bit, maybe get a little better defense, something--but my teams have been decent.
I do have a Miller Park you team you can take a look at.
http://365.strat-o-matic.com/team/1453735Good luck.