Tied up in knots
"The job advert also said the contractor will "initially be focused on the project to re-mediate the Enhanced Transition Service Enhancements (ETSE) solution which has been out of support/security accreditation since 2013.""
Stick big hard words in there, but actually say nothing then.
"re-mediate the Enhanced Transition Service Enhancements (ETSE) solution" = Fix the bungled supposed upgrade
WTF - Enhanced and Enhancements in the same axronym! They really do need to get over themselves and start thinking about get the job done