Ramanathan Yegyanarayanan is an agile coach with several certifications including ICP-ACC, ICP-TST, KSD, KMP, CSP-SM, CSP-PO, CSM, CSPO, PSM, CDA, and SAFe Agilist. The document discusses agile marketing principles including having a single intake process, maintaining a backlog, holding planning meetings, tracking stories on a board, and conducting retrospectives. It also references several agile marketing resources and tools.