Subdermal

What is the terminal goal?
Looking at your post I am not sure what your terminal goal is. Creating the perfect educator is an impossible task unless you define what actual goal is. I know it seems crazy because we all have the idea of what an “educator” is in our minds but having traveled to hospitals throughout the United States and the world I can say with confidence that the role of educator and their goals vary greatly.
Is the purpose to increase the general clinical performance of the floor nurse? Support hospital or unit goals through education? Increase employee satisfaction by offering them professional development opportunities? All of the above? None of the above? Depending on your goals you may find different interventions to be more appropriate than others. I cannot overstate how critical it is to first determine the goals.
The approach
One of the things that is effective is taking a more holistic approach. What I mean by this is you cannot just have classroom hours, cannot just do unit rounds, cannot just put out posters, you have to do all of it all of the time.
Microlearning has been shown to be very effective for adults, and especially busy nurses. Instead of the traditional long periods of lecture think of multiple 5-15 minute long education bursts. If you are educating on the floor 5 minutes is considered about the max. After that, even if they have the time you start losing their interest. Small groups is also really important, especially on the floor. No more than 5, seriously. At 5 you are likely to have 1 heckler which is easily managed but at 6 you start getting 2 hecklers which feed off of each other. Seriously, 5 at a time with 3 being the ideal. Posters are good but only 1 central large poster with detail and many small simple posters everywhere that communicate 1 single aspect of information. If you are discussing CAUTI for example you can have 1 large poster with the policy, best practices etc but then have many small posters with a single statement that the need for Foley’s should be assessed every X amount of time. Then on a regular basis, as in every few days or once a week change that poster to another single fact. These small bursts of hyper-focused and revolving sources of information tend to keep interest and more effectively deliver information. Assign unit champions for any given topic. Select one or two people, preferably not just the charge nurses, to be a topic champion. You can dive deeper into the education with those individuals and allow them to carry your message. Nothing is more effective than lateral pressure. Accountability
Beyond those goals what role or authority does the educator have in the hospital structure? This is an exceedingly important foundational element to education. I have been to hospitals where certain unit directors or managers will have a personal philosophical difference on education or goals and either undermine or outright challenge the educator on those units which means their educational efforts are lost on deaf ears. Without authority those educators are nearly powerless and their effectiveness is severely diminished. Contrast that to many Canadian educators and they have a nearly clinical manager role where they oversee much of the clinical practice on any given unit, relegating the unit managers to more of a personal leadership role instead of the traditional American clinical practice leadership role.
This might be outside of your committee’s scope but it is a very important consideration. If the educator does not have formal authority they should at least have routine cohort and higher level leadership meetings. Does not have to be frequent but it does have to be regular and quarterly at least. This gives the educator a chance to discuss challenges and goals with the unit directors/managers and then a chance to discuss higher level challenges or goals with senior leadership.
Partnership
Don't forget to leverage others who are trying to educate in your facility. Manufactures spend millions on education and are looking for opportunities to educate. Ask companies for CE education, posters, people to come educate, etc. They do not always just educate on products but many times discuss diseases, standards and guidelines, etc.
Beyond helping the floor, ask the manufacturers to come and and educate the educators and leadership! This is a very common practice outside of the United States.
Leverage the resources you already have at hand.