I would put all-in, the second stack at the table and a good hand, most likely will close one short stack of 5670 chips, if you lose you will have 9000 chips, and if you win it will be 23000. Thus, with a stack of 14,000 chips, you can win 9,000 chips or lose 5670 chips. I think in this situation it is obvious that the chance should be put all-in.