Make the playfulness express the proposition
Playfulness belongs in a B2B campaign when it helps demonstrate what the business offers. The Frameworks applied that principle in its campaign for Lawyers on Demand, using anagrams, wordplay and bold typography to express the New Law business's focus on seeing things differently. The creative treatment invited human curiosity while reflecting the brand's offering, rather than adding entertainment unrelated to the message.
For a campaign team, the useful test is whether the playful device makes the proposition more tangible. In the Lawyers on Demand campaign, a different way of thinking was something the audience could encounter through the words and design, not simply a claim to read. The Frameworks argues that business communications still address people: the opportunity is to engage their curiosity without separating the creative idea from the business message.
Sources: Why bold design is good business