Manager Development

Resources/tools for training managers
Differentiating new manager / experienced manager / exec trainings
Tips, advice, & resources for first-time managers
Topics for manager training programs
Does anyone here have experience with leadership team development (e.g., conflict, tension, communication styles, etc.)?
Communication & collaboration training programs & resources for managers
What to do when C-Suite is not participating in day-to-day management (regular 1:1s, feedback, reviews)?