Do you have multiple teams using different methodologies developing one product? Do you find it challenging to support their ways of working while keeping a singular vision?
Combining Scrum, Kanban and Gantt is easier than you think. Multiple teams with different ways of working, pulling from the same backlog is a reality. This allows people to work the way they want, while managers always have an up to date view of of the big picture, with the ability to drill down into the details, if necessary.