reorganize vs shake up

reorganize and shake up both are verbs.

Word	Noun	Adjective	Verb	Adverb
reorganize	No	No	Yes	No
shake up	No	No	Yes	No

As verbs, reorganize and shake up are synonyms defined as:

Other synonyms of reorganize include reorganise.

reorganize (verb)	shake up (verb)
organize anew	make fuller by shaking
organize anew, as after a setback	change the arrangement or position of
	stir the feelings, emotions, or peace of
	shock physically
	shake; especially (a patient to detect fluids or air in the body)
	organize anew