a new broom sweeps clean
a new broom sweeps clean, but an old broom knows the corners
radical
revolutionary
changemaking
rescale
recapitalize
move
desecrate
paradigm shift
heel turn
multichange
makeover
revolutionise
turn the boat
transfiguration
clean house
see the light
turn
reform
straighten out
rejuvenation
redeem
shake up
develop
retool
revise
reprogram
nonreformist
revolutionize
turn the tide
turn around
plant a seed
redesignability
restructure
reformist
mutandum
switchover
redirect
transhape
refunction
undergo
emend
good
renovate
metastrophe
overturn
differentiate
bettering
branch out
radicalize
instaurate
shake-up
change over
renew
pivot
reradicalize
regenerate
convert
shakeup
reorganization
Cultural Revolution
restrategize
on the turn
restrategise
unaccustom
clean up one's act
reorganisation
commit
vary
mutatis mutandis
refresh
rechange
currency exchange
re-engineer
reshape
moderation
make over
relief
transformative
transverse
reculture
switch tack
recost
easing
rehaul
retask
new wine in an old bottle
flux
redesignable
rescope
difference
remould
restrategization
change