The RHEL 7 Migration Planning Guide mentions "systemadm" on page 36 (of the PDF version). Looking at Fedora, systemadm comes from the systemd-ui package which is not available (so far as I can tell) in RHEL7.
Thanks for the report Scott; I've another bug (Bug 1132306) that reports the same issue, so closing this one as a duplicate. You can track its resolution over on Bug 1132306.
*** This bug has been marked as a duplicate of bug 1132306 ***