I don't think we can play the defense that got us here without playing "tough." Also officials allow it from game to game, to change our entire approach on that end would be tough for any team. For what it's worth, it's very possible to play lock down d without fouling the opposing team.
Anyway, the foul trouble we've been seeing has more to do with perimeter defense and moving screens. I don't want them to stop banging in the paint or else we're toast. The lakers are a WAY better finesse team than we are...