My first-ever Open League team was built similarly. I did it that way because it kind of mirrored fantasy baseball strategy of 60/40 batters to pitchers. That team got throttled; I think they went 63-99 at SD Stadium. 1987 Will Clark was our star, if I recall, but our pitching got lit up and fatigued badly. Your results may vary but SD Stadium should have helped my pitchers but obviously it didn't.
Good luck, though. Partly depends on who you're up against, too.