This week you’re playing at a major final table as the chip leader. The presence of the short stacks on this table allow you to play wider ranges against the medium stacks due to ICM pressure with big money on the line.
When the 30BB stack opens they should be playing a narrower range than usual when raising first-in from the Cutoff. You can call with a fairly typical Button calling range despite their narrower range because of your postflop ICM edge.
When Villain checks first to act on the flop, you should often be taking stabs at the pot.