I'm managing a team that's resistant to a new agile management process we're implementing. What are effective strategies to overcome resistance and ensure smooth adoption based on MPOB principles?

In my role as a project lead at a mid-sized software company, we're transitioning from a traditional hierarchical structure to an agile framework to improve flexibility and collaboration. I've introduced daily stand-ups and sprint planning, but several team members are pushing back, citing confusion and increased workload. I've tried explaining the benefits and providing training sessions, but engagement remains low. How can I apply organizational behavior theories to address this resistance and foster buy-in?