Mark Ritson thinks marketing ‘experts’ should be trained in marketing. Agree or disagree?

This week Mark Ritson’s column, ‘Maybe it’s just me, but shouldn’t an ‘expert’ in marketing be trained in marketing?’ caused huge debate. The column presents Ritson’s belief that anyone that is declared “an expert/ninja/visionary in marketing” needs some sort of formal qualification.
The responses came in thick and fast. Commenting on the article, many pointed out that they had “learnt on the job” and that many marketin