[pjmorris]

In addition to the other excellent recommendations here, I'd suggest the work of Jerry Weinberg. He wrote 'An Introduction to General Systems Thinking,' and he applied systems thinking in the work that he did. The two works that come to mind in view of your question are 'How To Become a Technical Leader', focused on the individual manager and their team, and the four-volume 'Quality Software Management', focused on both the manager and the organization.