While the whole shift-left concept is indeed incredibly valuable, you can accelerate testing to keep up with development by simply reducing rework across functional testing and improving collaboration across teams — that is, if you have the right tool.
As 2019 continues, I had to reflect on the thousands of conversations I have had over the last year with QA, test engineers, and managers. Last year, especially the last quarter of it, was dominated by conversations about accelerating testing, especially how to align testing strategies concurrently with development. So I had the distinct pleasure of sharing with many people how to reduce rework across functional and nonfunctional testing with Parasoft SOAtest, simultaneously improving collaboration across teams while accelerating testing to keep up with development.