Super interesting work! (methods are way beyond my own expertise, but I can immediately see why this work is really important for all of us working in an acute hospital setting) Quite a lot might come down to how predictive the model is in the real-life setting, and what are the consequences experienced when the model gets it wrong: – and the attitudes of staff may take a while to shift likely informed by their personal experience. The qualitative approach will definitely give you interesting information. I wonder whether you might find different things in focus groups vs individual 1:1 interviews, as people might disclose different things in 1:1 compared to a group of their peers.