[ilc]

In a scrum using firm:

I was the Team Lead of a team, and I told my management: "SCRUM will not work for our workload. We have too many shifts in priority to plan for 4 weeks at a time."

I was told I could choose any process I needed to get the job done, but we needed a "Scrum Master" to interface with the other teams. I played Scrum Master. I also had the team running on Kanban, which while imperfect, it beat the alternatives for a team that had to shift targets rapidly.