Right, but people will call "I Doubt It" on your last card to keep you from winning, so if you know the card you'll need to play you can dump cards here or there by bluffing to set up for it (or, as OP suggests, get that card by thinking ahead, but I wouldn't agree with that strategy since half the time you'll get garbage from lies or picking up a large pile).

Yes, there is strategy in the game. But other players can counter strategy.

That is the whole point of a good game. Strategy, but no perfect strategy.