Once you're in steady state maintenance/incremental improvement mode, then sure, kanban is probably the appropriate approach. But for initial product developmen

Once you're in steady state maintenance/incremental improvement mode, then sure, kanban is probably the appropriate approach. But for initial product development, and major new feature releases or product re-writes, scrum with its measured discipline and time restrictions is better. It's more difficult to force functionality/schedule tradeoffs with kanban. You simply end up reinventing scrum by grouping stories and imposing deadlines.