The park is a huge factor in why some teams are better than others. Using players who fit your park allows you to legally circumvent the salary cap as far as the overall "real" value of your team. It is impossible to overstate it's importance. You can magnify the strengths of certain players and minimize the weaknesses of others. A guy like Colby Lewis, whose card is rated for a hitters park, has a low WHIP and gives up the long ball to LH hitters, becomes a potential stud in Fenway Park. His 3.82 actual salary value can become a measurably higher value for your team. How much higher is dependent on the division and league. See also Josh Willingham, Rafeal Soriano and many, many others who can excel in certain parks.
Luck also is a factor. Sometimes you just get lucky or unlucky and what should be a good team underperforms or visa versa.
You put RH power hitters at Progressive or Single, high average guys at a place like Citi with no power hitters you won't do well. If you are in a pitchers park you don't need great pitching and in a power park you don't big homerun hitters like Davis just guys that can't hit HR's. A $4MIL SP can be as good or better than Verlander if he pitches a Petco.
As for luck it really plays a part in this game. It is a dice game. I have a keeper league going for 2 seasons this year and the first one they went 87-75 and won the division. This time they are 32-46 so far and everything that worked in season 1 is out the door and down the street this season.
Oh and I almost forgot that Jerry is the guy that I followed the most. If I noticed him in a league I signed up and kept a close eye on how he built a team. He beat me into next week but I got much better by stealing his idea on how to win this game!
