The special thing about the final table is, that usually each player, that bust, is now associated with a payjump. So the key adjustment is to understand, how this affect the strategy of everyone at the table. Sometimes this is referred to as ICM (Independant Chip Model), which basically mean, that chips lost is worth more than chips won, which create risk aversion.
* The short stacks should play relatively normal and try to accumulate chips. Maybe they call off a bit more conservative, especially if there are more than one player with a similar short stack. Like you are the shortie with 9BB, but two other players have 10BB and 12BB. Then there is value in trying to outlast them.
* The big stacks open up their range and try to pressure shorter stacks but avoid big pots against each other. Like you are the chip leader with 60BB, but the second in chips have 55BB, so you do not want to play some massive pot with him and potentially drop down to 5BB.
* The medium stacks need to tighten up except against short stacks. If you have 27BB, you really dont want to go broke, as long as 3 guys are sitting with 9, 10 and 12 BB respectively. So say you are HJ and look down at JTs, which would normally be a hand, you open. But you have both chipleaders as well as two short stacks left to act. So if you open this hand, a lot of the time a short stack will jam on you, or a big stack will enter the pot, and both of that put you in a really bad spot. And for that reason you fold and basically hope, that some of the short stacks will soon bust.