I always say that the standard work for leaders is to demonstrate that this change in thinking is important. Don't just say it is important. Show up, ask why, show respect-or, simply "go to gemba". The reason this is so important is because if you don't, everyone will fill their day just doing their jobs...the processes that got you to today, but maybe not to tomorrow. The hardest thing is to get going and then stay going. I've seen lots of momentum generated from periodic kaizan "events" lose steam. The periodic kaizan event is sometimes taking a big bite (binge). What I suggest is lots of small bites.
If there are 100 employees in your company, and if everyone spent just 15 minutes per day doing A3 (leading or on teams), at the end of one year, your company will have spent 360,000 minutes (15 minutes X 100 people X 240 workdays) getting "a little better". That is 6000 hours, or 750 eight hour work days. I get it. Odds are you won't see this type of participation for awhile. So what? Even if you achieve a fraction of everyone spending 15 minutes every day, it's better than 10-12 kaizan events.
Place no judgement on the type of improvements people are doing. The trick is to celebrate their willingness to take ownership in their own jobs. Currently 3 of the companies I have the honor of working for have established this culture and this is when the fun begins. People get very, very good at the process of Plan-Do-Check-Act simply because they do it so much! You will NEVER get very good at LEAN if you give it lip service, or if you only do it once in a while (don't waste your time certifying people on-line). The only wrong way is to do nothing. Like NIKE, Just Do It. Learn by Doing!
Can we get a little better every day?