Yes, I agree. Tourneys are in stages, three of them to be exact.
The beginning game, the middle game, and the end game.

In the beginning game - I play very loose (why? the BB are low, so if I lose I'll still have 10x the BB)

In the middle game - I play tight and only plat strong hands.

In the end game - I play loose again (why? I'm a loose player and that's my style)