I think it’s hard to pick just one that would have the greatest impact, and as the video pointed out, you need several influencers to achieve a goal. In my organization they just launched an “End PJ Paralysis” initiative to help reduce decompensation of the elderly while in hospital. It’s a wonderful idea, however they just sent an email and put up posters. The initiative, although great in theory lacked any of the influencers mentioned aside possibly from personal motivation in that we all want what is best for our patients and their outcome.