In real life, there were only 10 players on the team, which is shown in the movie. Four of the "talking" Owls came from LA, the other six came from Austin. They held a camp and 800 kids came out, and the producers got to pick from them.
The park used for Durham Bulls home stadium was actually the new Dell Diamond in Round Rock Texas. The stadium was the home of the triple-A Astro farm team that has since changed to the triple-A Texas Rangers farm team. The teams name is the Round Rock Express.
When the MVP player of the Roughnecks is batting as the last batter of the big game and hits the 1-1 pitch a mile but foul - he starts waving his arms "Carlton Fisk style" - but he's waving them in the direction (his left) as if he is wanting the ball to go foul and obviously would want it to go fair.