Integration tests bring more value if you're planning a bigger architecture refactoring. However, if you're mostly happy with the architecture, then unit tests will give you more benefits.

When is a good moment not to change an existing code but instead write a new module/class and replace it, in the spirit of immutability?

One person working remotely forces the whole company to follow remote techniques, in order to be efficient.

Often developers are waiting for the mythical Domain Expert to ask questions. What if most of the questions can be answered by google?

We're often asked for estimates, but the business is not always specific what is the actual need. Do they care about the calendar deadline or do they care about the budget now?

We try to find the perfect tool which would fit both, the developers and the project managers? What if this is a non-perfect approach? What if we go with two different tools?

Are we faster than 20 years ago? Are we making less bugs?