How Plant Managers are Pivotal in an Effective Lean Process Concept Implementation Massimo Risi, VP, Global Head of Lean Manufacturing, VS&E–MAYCO Massimo Risi, VP, Global Head of Lean Manufacturing, VS&E–MAYCO Many years ago I was a young Plant Manager in a huge Production facility in south of Italy, belonging to a well-known OEM. At that time the Company had decided to start a journey towards Lean Manufacturing and a Japanese University Professor, a guru in Lean Processes, had been hired to assess our facilities. “An effective improvement plan may only be realized through the involvement of every single”