I think your next poll should be about whether you keep the improvement or not? I can say that most companies work on continuous improvement (knowingly or unknowingly) but the question is maintaining the change and improvement. 
 
I have seen a company invest in ISO 22000 prerequisite programs. Every month you will see that their food safety KPI (GMP scores, hygiene score, government compliance score) is getting lower. The only time their points are better, it is when they have an announced inspection/audit. But their score is turning bad soon after the inspection/audit is done. 
 
Example: you train employees how to wash hands properly. Day 1. Excellent job. Day 2. Forgot to dry hands. Day 3 Touches the faucet with hands without tissue paper, Day 4 Urinates and do not wash hand, go straight to food table. 
 
I also would like to ask HOW DO YOU KEEP THE IMRPOVEMENT? Below you can see the change model 6 stages with a hand washing example  (I would consider this as one of the tools for continuous development in food safety and quality)
 
1. Precontemplation - do not know why hand washing is important. 
2. Contemplation - Knows the importance of hand washing, but does not washes hands yet. 
3. Preparation - planning to make hand washing mandatory and committed to install hot water, soap, drying equipment. 
4. Action - Continuously provided soap, water and kept the handwashing sinks in good condition
5. Maintenance - Monitoring if people wash their hands and if not, asking them to do so. 
6. Termination - Not providing soap, water and drying equipment. People no longer wash their hands.