1. Direct the rider. Often what appears to be inaction or resistance is simply confusion. Script the critical change steps into simple, crystal-clear actions that can be easily followed. Look for early, or previous successes (bright spots), and identify the key components to change. Often large, complex problems seem to demand complex solutions, but by looking for common elements in the bright spots, we can make progress through simple steps. For example, a weightloss campaign that targets whole milk as the largest single source of fat simply suggested buying skim/1% milk and was effective. Solutions-based therapy is another example of the "bright spot" technique. When in your relationship/career/life were you happy.
2. Motivate the elephant. What looks like laziness is often exhaustion. People have a limited amount of self control, and expending this control fighting their elephant decreases their capacity for other efforts. Make an emotional appeal that is directed at making people feel something. Aligning logic and emotion is critical. Knowledge does not bring about change, only emotion and desire change behavior. Powerpoint displays rarely get peoples' blood boiling, so find more visceral ways to get your point across. In one example, as part of a campaign to reform corporate purchasing, a glove shrine with more than 400 gloves, many identical except for their prices, was piled on a fancy executive's table to demonstrate the insanity of each business unit independently negotiating and purchasing its own supplies. Always think, "what is the feeling here".
3. Shape the path. What looks like a people problem is often a situation problem. A good leader doesn't ask "what's wrong with these people, they just aren't getting it". Rather, consider what factors in the environment can be changed to influence the outcome. As an example, they described an experiment in which people at a movie theater were given large or extra large buckets of badly tasting popcorn. Repeated experiments confirmed that people given the extra large buckets ate more. Changing the bucket size changed behavior.
Rally the herd: Use peer pressure to drive conformity. If the majority of people are already doing the desired behavior, publicize it and encourage people to do the right thing. For example, publicize that 70% of employees get their expense in on time, or 90% of reviewers complete their review within X amount of time. As a corollary, don't publicize statistics that reinforce undesired behavior, e.g. only 30% of employees submit their expense reports on time.
Make use of action triggers. Encourage behavior by tying it to a specific time and place or event. For example, ask employees returning from a conference to "write up some notes for the team when the fasten seatbelts sign goes off on the flight home". Students asked to write a paper over break did better when they specified when and where they would write it.
Use checklists. The "lowly checklist" is extremely effective at making sure that procedures are followed, or ideas are primed. For example, the "cisco pre-acquisition checklist" was a useful tool for ensuring that basic questions were asked prior to acquisition.
I highly recommend Switch: How to Change Things When Change Is Hard for anyone attempting to create change at the personal, organizational or even societal level.