a good tournament player needs to be adept at more than one style of play in early stages, but in a nutshell:
- If the table is playing loose, tighten up.
- If the table is playing tight, widen your opening range.
Either approach should be followed by a post-flop strategy that's consistent with the available fold equity:
- against tight, weak, fit/fold opponents where there is lots of fold equity, consider a higher cbet% and bet strong draws aggressively, adding fold equity to the actual equity in your hand.
- against very aggressive opponents, consider taking a check-call line more often and allowing them to bluff and to overvalue second best hands.
- against calling stations, bet multiple streets for value, never bluff and never assume/hope that they will do the betting for you.
in later stages, it's more important to have a strong 3bet strategy and target tight/weak mid-stacks, but early on with deep stacks just beat them with superior hand selection given th table dynamic and post-flop play against different profiles.
in summary: It's probably best to come into every event with an open mind and figure out the table dynamic before deciding how best to counter it.