Originally Posted by suit2please
I believe you are confusing two things. Tight/loose and aggressive/passive. Your opponents could be tight aggressive (tag) or loose aggressive (lag), loose passive and tight passive opponents would generally be fish. There are only a few situations where being passive will be the right play.
I am not confusing. If your opponents are all TAGs, you shall be aggressive preflop, and tight postflop.
Btw, small ball players are LP but they still can win lots of tournaments.