I am about ready to move into a new stadium that better suits my team, but then I realized: I can't decided if this is an offensive or defensive team. Any help would be appreciated.

http://www.whatifsports.com/HBD/Pages/Popups/FranchiseProfile.aspx?fid=4616

It's neither of those things, but you do have some really good pitching. You've got a championship contender if you add an above-average SS, a legit power bat (85+ power, 75+ splits, 70+ eye) at the position of your choice, and a couple of quality bullpen arms (you don't need to break the bank, but grab someone who can close out games). I'd also look for a couple of low-cost veterans who can hit a little to sign to short-term deals (with mutual options) as backups/role players once FA prices come down.

I'd just stick with a neutral-type ballpark (no effects more than +/- 2) rather than shoehorning them into an extreme park.

So should I just stay in Richmond? I really would like that more, I just thought I should try to acclimate my team one way or another.

Richmond's as neutral as it gets, so if you're happy with that I'd advise staying there. I've found that the more extreme parks can be tough to determine what you're doing wrong if/when they do, so, since you're new to the game, it's probably better to start out somewhere that gives you a clearer picture of which ratings do what.