COLUMBIA, Md.--(BUSINESS WIRE)--Merkle (www.merkleinc.com), a leading technology-enabled, data-driven performance marketing agency, announced the appointment of Adam Lavelle to chief growth officer, Digital Marketing. In this role, Lavelle will be responsible for the continued expansion of Merkle’s flourishing digital services, helping clients grow their businesses and maximize their digital investments. “Merkle’s footprint in the digital space has grown significantly over the last several year