Work with processes, metrics, budgets and plans are important for test manager, besides of it, we are working with things called by Alister Cockburn "... as non-linear, first-order components in software development" - people.
The answer to the question "How to work with people" will be "communicate and be simple" in 90% cases. Is it awesome, isn't it? Measurable, doable, scalable, agile... There are can be all manager's epithets to describe this work as a manageable.
In case to be serious, there are well-known tools of experienced and good managers for "herding cats".
My masterclass will help you to be familiar with three of these tools: communication algorithm, constructive feedback and motivation-discipline, and you will have chances to try it in practice.