If you believe that you are there to support your team then you've cracked it. Everything else flows from this. e.g. protecting your team from pressure from other departments, not harassing them with pointless processes, letting them choose what to work on as much as possible etc. I once worked for a great manager who simply called you into his office once or twice a week to ask what you were working on and whether you needed any help. He'd keep track of what tasks needed doing and let the team pick tasks for themselves. If anything was left over he'd assign it to someone. Good luck!