You'll be able to cut a version less frequently, or at higher cost, than if you move to make your integrations continuous. Continuous integration also builds confidence in the customer and the team, through showing that the system can be built from end to end whenever it is needed. A team coding standard addresses communication with the code , reducing the need for discussion and written documentation. The coding standard makes it easie rto do collective code ownership, giving the project flexibility in who can take on which tasks. It helps reduce unnecessary specialization.
Testing is about feedback - knowing what works and when.
It is about confidence - the confidence that you're making progress. It's about communication - learning what's needed, learning how to understand the customer and how to communicate needs. Testing is key. Don't do less, do more. Refactoring is the process of improving the design of the system every day.