If he still did not change his ways, I would try again and again, in whatever way I could, to solve the problem, involving wider and wider circles of people, both above and below the offending executive and including my own boss if necessary, so that everyone involved can see the rewards for teamwork and the drawbacks of non-cooperation.

请教曹老师，involving wider and wider circles of people在句中的成份是看作to solve the problem并列句，谓语动词try的宾语吗？

both above and below the offending executive and including my own boss if necessary, 是看作插入语，还是评注性状语？