rejig

verb

1. (British, transitive)To rearrange or tweak (something), especially in order to improve it or make it suitable for some purpose.

   “The rejigged visiting defence was quickly under pressure, Dean Shiels played a neat one-two with Zdenek Kroca and only a brave Peter Enckelman save at the feet of the Northern Irishman prevented an opening goal.”

   “They simply cannot deliver what they promised. Nor will an affronted, alienated Brussels help them do so. Rejigged single market access? Forget it.”

   “The DfT's help didn't extend beyond the train operating companies (TOCs) for which it is responsible. Open access operators were left apart, and this forced Hull Trains to suspend its entire service. In turn, LNER had to rejig its timetables to fill the void and keep Hull served.”

2. (British, dated, transitive)To provide (a place, etc.) with new equipment or machinery; to reequip, to refit.
3. (British, transitive)To separate or sort (ore) again in a jigger or sieve.

noun

1. (British, transitive)A rearrangement, a reorganization.