You can use qalter to change dependencies for jobs. You can execute:
qalter 468744 -W depend=after:468753
qalter 468753 -W depend=after:468743
This will make it so that 468744 doesn't execute until after the new job and the new job doesn't execute until after the first job. Just as you can add after dependencies to queued jobs, you can also add other kinds of dependencies.