Vary
Part of speech: verb
Definition: To change with time. Not to remain constant. Of a group, to display differences.
Example sentence: The dignity of the artist lies in his duty of keeping awake the sense of wonder in the world. In this long vigil he often has to vary his methods of stimulation; but in this long vigil he is also himself striving against a continual tendency to sleep.
Motley
Part of speech: adjective
Definition: Comprising greatly varied elements, to the point of incongruity; heterogeneousHaving many colours; variegated
Part of speech: noun
Definition: A jester's multicoloured clothesAn incongruous mixture
Example sentence: Social media teams tend to be decentralized - a motley mix of in-house experts, off-site consultants and international partners. The result: Confusion, rogue tweets, and off-message posts are almost inevitable. The worst gaffes live on in social media infamy.